61. ASCIA Member Services: Patient Information Bulletin urticaria is a distressing but generally benign and selflimiting condition. urticaria is best considered a syndrome of many potential causes (Table 2) http://www.allergy.org.au/aer/infobulletins/Urticaria2.htm

Urticaria By Dr Raymond Mullins Introduction Urticaria is a distressing but generally benign and self-limiting condition. Transient symptoms occur in around 1 in 30 children and up to 1 in 5 people during life. Most patients respond to explanation, symptomatic treatment and clinical follow-up. Up to 1 in 1000 adults suffer from chronic or recurrent disease, which has a significant effect on quality of life. Investigation and specialist referral is indicated in the presence of prolonged, refractory or atypical symptoms, or when underlying disease is suspected. Clinical Features Urticarial lesions may be flat or raised, itchy or asymptomatic, of variable size and last minutes to hours. Diagnostic confusion may arise when patients present with long-lasting secondary dermatitis from scratching. Urticarial vasculitis should be suspected when lesions last longer than 24 hours, particularly if painful, purpuric or accompanied by bruising or systemic symptoms. Disorders mimicking urticaria need to be considered in the differential diagnosis (Table 1) Angioedema occurs in the dermis and subcutaneous tissue, either alone or in association with urticaria. Swellings are less demarcated, may burn or hurt, and often last longer than 24 hours. The face and larynx is most often involved. Swelling elsewhere may cause diagnostic confusion. Extensive limb involvement, for example, may be mistaken for arthritis or cellulitis. Visceral angioedema is most commonly associated with hereditary angioedema (HAE; C1 esterase deficiency), but is observed occasionally in patients prescribed ACE (kininase) inhibitors and in idiopathic disease.

62. Urticaria urticaria. Pediatrics in Review. 1998; 19240244. Plumb J, et al. Exposures and Outcomes of Children with urticaria Seen in a Pediatric Practice-Based http://pedclerk.bsd.uchicago.edu/urticaria.html

Back to table of contents Urticaria Joel Schwab M.D. Urticaria or hives is an evanescent rash often preceded by itching. The lesions are raised, pinkish-white patches(wheals) that can occur on any part of the body. They are usually well circumscribed but may be coalescent and will blanch with pressure. They typically last less than 4 hours but they may stay for days or weeks. Approximately 20% of the population has experienced a bout of hives. Hives are secondary to edema of the stratum corneum related to vascular dilatation and increased capillary permeability. Angioedema is caused by a similar mechanism but involves deeper layers of the skin and subcutaneous tissue. There is non-pitting, non-dependent, edema. Angioedema commonly affects the gastrointestinal tract, upper respiratory tract, and the tissues around the eyes. If the airway is involved, it may be life threatening. Pathogenesis Immunologic - Antigen binds to IgE on mast cells or basophiles leading to degranulation and histamine release. This increases capillary permeability Non Immunologic Activation of the complement system (C3a, C4a, C5a) may trigger release of histamine. Associated with opioids and NSAIDs.

63. Family Works!: Urticaria (Hives) Pink or red welts on the skin characterize urticaria, the medical urticaria is a physiologic response to some event that incites an immune response. http://www.princetonol.com/family/columns/pedgroup34.html

Urticaria (Hives) By Mark B. Levin, M.D. The Pediatric Group, P.A., Princeton This is the thirtyfourth article in a series written for Princeton Online . Click here for an archive of other articles Pink or red welts on the skin characterize urticaria, the medical terminology for hives. The welts may be as small as a mosquito bite (often-termed papular urticaria) or an inch or more in diameter. The can be sparse or so plentiful that they merge into large collections of irregularly shaped welts, called erythema multiforme. (A similar rash, called erythema marginatum, can be a consequence of an untreated by strep throat and has a flat or slightly irregular raised edge and a large skin-colored center.) Whether they are small and sparse or large and grotesque, parents are often concerned about hives. Urticaria is a physiologic response to some event that incites an immune response. It may occur in people who are exposed to allergens (proteins that a person is allergic to). Allergens can be in foods, airborne inhalants, contact proteins applied to the skin or contained in germs (bacteria and viruses). When our bodies recognize allergens, we make specific antibodies directed against each allergen. The combination of antibodies and allergens circulate in our bloodstream until they are eliminated. While in our circulation, they cause local dilatation of the cutaneous blood vessels that allows more local blood accumulation, appearing as flat or raised red blotches in the skin. The increased blood flow to the area stimulates the cutaneous nerves, causing itching.

64. Introduction: Autoimmune Urticaria - WrongDiagnosis.com Introduction to Autoimmune urticaria as a medical condition including symptoms, diagnosis, misdiagnosis, treatment, prevention, and prognosis. http://www.wrongdiagnosis.com/a/autoimmune_urticaria/intro.htm

Home Symptoms Diseases Risks ... Diseases Search our medical database Subscribe to our free Newsletter sample Send this page to a friend Condition Lists By Organ By Symptom By Class By Prevalence ... List A-Z Current chapter: Autoimmune Urticaria Next sections Basic Summary for Autoimmune Urticaria Glossary for Autoimmune Urticaria Next chapters: Paraneoplastic Autoimmune Syndromes Lyme disease Bacterial diseases Syphilis ... Feedback Introduction: Autoimmune Urticaria Autoimmune Urticaria: Skin blood vessel reactions of autoimmune cause. Contents for Autoimmune Urticaria: Basic Summary for Autoimmune Urticaria Glossary for Autoimmune Urticaria Diseases Did we miss something? Please provide feedback or suggestions By using this site you agree to our . Information provided on this site is for informational purposes only; it is not intended as a substitute for advice from your own medical team. The information on this site is not to be used for diagnosing or treating any health concerns you may have - please contact your physician or health care professional for all your medical needs. Please see our IMPORTANT! Use of this site is subject to our

65. Introduction: Urticaria - WrongDiagnosis.com Introduction to urticaria as a medical condition including symptoms, diagnosis, misdiagnosis, treatment, prevention, and prognosis. http://www.wrongdiagnosis.com/u/urticaria/intro.htm

Home Symptoms Diseases Risks ... Diseases Search our medical database Subscribe to our free Newsletter sample Send this page to a friend Condition Lists By Organ By Symptom By Class By Prevalence ... List A-Z Current chapter: Urticaria Next sections Basic Summary for Urticaria Types of Urticaria Causes of Urticaria Misdiagnosis of Underlying Causes of Urticaria ... Doctors and Medical Specialists for Urticaria Next chapters: Autoimmune Urticaria Paraneoplastic Autoimmune Syndromes Lyme disease Bacterial diseases ... Feedback Introduction: Urticaria Urticaria: Urticaria are reactions by the blood vessels in the skin leading to skin changes. The appearance of "acute urticaria" are called hives Causes of Urticaria: Research more detailed information about the causes of Urticaria , other possibly hidden causes of Urticaria , or other general information about Urticaria Statistics and Urticaria: Various sources and calculations are available in statistics about Urticaria , and you can also research other medical statistics in our statistics center Contents for Urticaria: Basic Summary for Urticaria Types of Urticaria Causes of Urticaria Misdiagnosis of Underlying Causes of Urticaria ... Glossary for Urticaria Last revision: May 29, 2003

66. Urticaria Delayed pressure urticaria occurs 4-6 hours after pressure to skin (elastic, Aquagenic urticaria - rare. Small wheals after contact with water at any http://www.5mcc.com/Assets/SUMMARY/TP0971.html

Urticaria DESCRIPTION: Itchy rash. Single or multiple superficial raised pale macules with red halo. Subside rapidly; no scars or change in pigmentation. May be recurrent. Acute urticaria Response to many stimuli IgE-mediated histamine release from mast cells Sometimes idiosyncratic response to drug exposure Subsides over several hours Cold urticaria - from cooling, rewarming. Can be fatal (cold immersion with massive histamine release). Also a familial form with fever, chills, arthralgia, myalgia, headache, lymphocytosis. Cholinergic urticaria - heat urticaria. Small (5-10 mm) wheals on upper trunk from overheating, hot shower Exercise-induced urticaria - from extreme exercise; presents as cholinergic urticaria, angioedema, wheezing, hypotension. Often associated with eating food to which patient is allergic. Dermatographism - linear wheal and flare resulting from scratching the skin Solar urticaria - result of exposure to sunlight. Several types, by wavelength of light which induces reaction. Majority react to ultraviolet. Onset in minutes; subsides in 1-2 hours. Delayed pressure urticaria - occurs 4-6 hours after pressure to skin (elastic, shoes, etc.)

67. DermIS / Main Menu / DOIA / Alphabetically / Diagnosis Names Starting With 'U' urticaria Factitia, 5. urticaria Mechanica, 2. urticaria Papulosa Infantum, 3. urticaria Pigmentosa, 21. urticaria, 5. urticarial Vasculitis, 9 http://dermis.multimedica.de/doia/abrowser.asp?zugr=d&lang=e&beginswith=U&size=0

68. BBC - Health - Conditions - Urticaria Causes, symptoms and treatment of the skin condition urticaria http://www.bbc.co.uk/health/conditions/allergies/allergicconditions_urticaria.sh

@import url('/includes/tbenh.css') ; Home TV Radio Talk ... A-Z Index FRIDAY 9th September 2005 Text only BBC Homepage Lifestyle Health ... Help Like this page? Send it to a friend! Urticaria Dr Adrian Morris Urticaria is an allergic skin rash also known as 'nettle rash' or hives. There are two distinct types: acute urticaria is often caused by an allergy and can last between several hours and six weeks; chronic urticaria persists beyond six weeks. In this article What are the causes? What are the symptoms? How to diagnose the cause What treatment can you get? What are the causes? The most likely to cause acute urticaria are allergy to pets, horses, latex or food such as shellfish, nuts, fruit and dairy. Bee or wasp stings may cause urticaria, along with allergies to medicines such as antibiotics, ACE inhibitors and aspirin. Certain viral infections such as glandular fever and hepatitis B, and blood transfusions and vaccines can also cause hives. Certain parasitic infections, blood pressure drugs or stress may trigger it.

69. BBC - Health - Ask The Doctor - Urticaria (hives) Chronic urticaria. Hives can last from anything up to a few hours or days, to several weeks. Occasionally hives continue for more than six weeks, http://www.bbc.co.uk/health/ask_the_doctor/urticaria.shtml

@import url('/includes/tbenh.css') ; Home TV Radio Talk ... A-Z Index FRIDAY 9th September 2005 Text only BBC Homepage Lifestyle Health ... Help Like this page? Send it to a friend! Hives (urticaria) I keep getting very itchy skin bumps. These are quite large patches (about the size of a 50p coin), usually on my arms and chest, which appear and disappear and are quite unrelated to anything, as far as I can tell. Is this an allergy? Steph Dr Trisha Macnair responds It sounds like you're describing something called hives (also known as urticaria). However, there are several other skin problems, from allergies to infections and infestations (such as scabies), which need to be ruled out. The only way to get a definite diagnosis is to have someone look at it, so you should see your doctor. What are hives? Hives are raised wheals or swellings on the skin that may be slightly red and can be intensely itchy. They can be any size, from small spots to the size of dinner plates, and tend to occur in crops that come and go. Each bump lasts a few hours, before fading with no lasting mark, only for new ones to appear. Any part of the body can be affected. When very soft tissues are affected, such as around the eyes or mouth, there can be immense swelling. This can be frightening, but it usually settles quite swiftly.

70. Postgraduate Medicine: Acute And Chronic Urticaria Krishnaswamy G, Youngberg G. Acute and chronic urticaria challenges and considerations for urticaria may be classified as either acute or chronic. http://www.postgradmed.com/issues/2001/02_01/krishnaswamy.htm

Allergy Update Acute and chronic urticaria Challenges and considerations for primary care physicians Guha Krishnaswamy, MD; George Youngberg, MD VOL 109 / NO 2 / FEBRUARY 2001 / POSTGRADUATE MEDICINE CME learning objectives To understand the pathogenetic mechanisms of urticaria and angioedema To learn how to differentiate urticaria from urticarial vasculitis To review the pharmacologic management options for chronic urticaria and angioedema The authors disclose no financial interests in this article. This page is best viewed with a browser that supports tables. The author dedicates this article to his father, Dr N. Krishnaswamy, MB BS, an immunologist and clinician extraordinaire, who has been a constant source of inspiration. Second in a series of articles on allergy and immunology coordinated by Guha Krishnaswamy, MD, chief, division of allergy and immunology, James H. Quillen Veterans Affairs Medical Center, and associate professor, department of medicine, East Tennessee State University, Johnson City. Preview : Urticaria is one of the most common dermatologic problems seen by primary care physicians and often a source of frustration for patient and physician alike. Pinpointing the cause may be challengingor impossiblebecause of the many and varied triggers. Drs Krishnaswamy and Youngberg shed light on this common condition, describing the diagnostic considerations in evaluation of acute and chronic cases and discussing the variety of pharmacologic options available.

71. Postgraduate Medicine: Allergy Symposium: Urticaria In this article, Dr Sveum puts the spotlight on urticaria. urticaria, commonly known as hives, is a vascular reaction in the upper dermis, marked by the http://www.postgradmed.com/issues/1996/08_96/sveum.htm

Urticaria The diagnostic challenge of hives Richard J. Sveum, MD VOL 100 / NO 2 / AUGUST 1996 / POSTGRADUATE MEDICINE This is the second of five articles on allergy Preview : Patients who present with hives are often hoping their physician can tell them what caused the condition. In acute cases, that is often possible, but unfortunately, the majority of chronic cases are idiopathic. In this article, Dr Sveum puts the spotlight on urticaria. He stresses the importance of taking a careful medical history and describes treatment options. U rticaria is part of a more severe allergic reaction called anaphylaxis, in which hypotension or respiratory distress can be present. When a patient presents with flaring or reddened skin and wheals, prompt evaluation is needed. Once the physician is sure anaphylaxis is not occurring, the next step is to proceed with careful history taking. Urticaria, commonly known as hives, is a vascular reaction in the upper dermis, marked by the development of wheals on virtually any area of the body. Acute urticaria is defined as hives that last for less than 6 weeks (1); when the hives last for more than 6 weeks, however, the condition is considered chronic. Chronic urticaria can be particularly frustrating to diagnose and treat, since most cases are idiopathic. Fortunately, the condition can often be controlled with appropriate medical management.

72. Physical Allergies: Exercise-Induced Anaphylaxis And Urticaria Exercise can produce a spectrum of allergic symptoms ranging from an irritating skin eruption to a lifethreatening anaphylactic reaction. http://allergies.about.com/cs/exercise/a/blaafpphysical.htm

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73. Hives (Urticaria) urticaria are raised, red, itchy areas of the skin which are called hives, wheals or welts. http://allergies.about.com/cs/hives/a/aa060799.htm

var zLb=7; zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zfs=0;zCMt='a03' About Allergies Irritating Skin Conditions Hives Urticaria Hives (Urticaria) Allergies Essentials Physician Locator Allergy Symptoms ... Help zau(256,140,140,'el','http://z.about.com/0/ip/417/C.htm','');w(xb+xb+' ');zau(256,140,140,'von','http://z.about.com/0/ip/496/7.htm','');w(xb+xb); FREE Newsletter Sign Up Now for the Allergies newsletter! See Online Courses Search Allergies Stay up to date! Compare Prices Email to a friend ... Print this page Suggested Reading Additives Drug Allergies Food Allergies More Related Resources How To Treat Hives Surviving Winter's Itch All About Hives Recent Discussions Hives Dark Circles Around the Eyes Carrageenan Most Popular Ragweed Pollen Allergy Allergy Symptoms Symptoms Summer Skin Rashes ... Causes of Dark Circles What's Hot Colds vs. Allergies Symptoms of Allergies to Airborne Substances Celiac Disease Fragrance Sensitivity ... Latex Allergy Related Topics Asthma Skin Conditions / Acne Headaches / Migraine Thyroid Disease ... Pediatrics adunitCM(150,100,'x55') Hives (Urticaria) From Judy Tidwell Your Guide to Allergies FREE Newsletter.

74. Urticaria urticaria. John L. Bezzant,MD Injectable antibiotics more often induce urticaria and anaphylaxis than orally or topically administered antibiotics. http://medstat.med.utah.edu/kw/derm/pages/anin_3.htm

Dermatology Anaphylaxis Incidence Urticaria John L. Bezzant,M.D. Injectable antibiotics more often induce urticaria and anaphylaxis than orally or topically administered antibiotics.

75. Urticaria Dermatology Anaphylaxis Incidence. urticaria. John L. Bezzant,MD Injectable antibiotics, especially the penicillins, can induce urticaria. http://medstat.med.utah.edu/kw/derm/pages/anin_2.htm

Dermatology Anaphylaxis Incidence Urticaria John L. Bezzant,M.D. Injectable antibiotics, especially the penicillins, can induce urticaria.

76. Dark ADES urticaria. urticaria1.jpg urticaria1 urticaria2.jpg urticaria2 urticaria3.jpg urticaria3 urticaria4.jpg urticaria4 urticaria5.jpg http://ades.tmu.edu.tw/english/pcare/course/urticaria/small/urticaria.html

ADES - Urticaria Suggestion to this case

77. Auckland Allergy Clinic - Urticaria And Angioedema Auckland Allergy Clinic offers information about diagnosis, management and treatment of asthma, allergies, anaphylaxis, bronchitis, dermatitis, eczema, http://www.allergyclinic.co.nz/guides/32.html

Urticaria, commonly known as hives is characterised by transient, itchy, oedematous wheals or red papules. The important thing that distinguishes it from other skin conditions is the transient nature and the intense pruritus. Individual lesions should last no longer than 24 hours and disappear without leaving any marks. Deeper swellings, known as angioedema, are most often found in the mouth, eyelids, or genitalia, but may occur anywhere. Angioedema is associated with urticaria in about 40% of cases or occurs on its own in 10% of cases. Prevalence Causes of Acute Urticaria Idiopathic in up to 50% of cases Foods : fruits (eg, strawberries), milk, eggs, seafood, nuts, and spices, Drugs: Viral Infections: This is a common, but poorly recognised cause of acute urticaria, especially in children. Often antibiotics are blamed for this reaction. Wasp or bee sting Blood products Chronic Urticaria Chronic urticaria (lasting more than 6 weeks) is much more troublesome than acute urticaria. Recent studies using an internationally recognised quality of life questionnaire, the Nottingham health profile, have highlighted the disability of patients with chronic urticaria, including loss of sleep and energy, social isolation, altered emotional reactions, and difficulties in aspects of daily living. The disability is of the same order as that experienced by patients with sever chronic ischaemic heart disease.

78. Hives - ACAAI urticaria, commonly known as hives, usually strikes suddenly. Most cases of urticaria are acute, lasting from a few hours to less than six weeks. http://www.acaai.org/public/advice/urtic.htm

Urticaria Urticaria, commonly known as hives, usually strikes suddenly. First the skin itches, then it erupts into red welts. The itching may be severe, keeping people from working or sleeping. It's a distressing disorder which affects an estimated 20 percent of the population at one time or another in their lives. What is urticaria? Most cases of urticaria are acute, lasting from a few hours to less than six weeks. Some cases are chronic, lasting more than six weeks. The welts may appear in one place, disappear after a short time, then erupt at another spot, then another. They are made worse by scratching. Each individual hive lasts no more than 24 hours. What kinds of things can trigger attacks of urticaria? Bouts of urticaria have been traced to such triggers as infections, drugs (including aspirin), certain foods and additives, cold, sun exposure, insect stings, alcohol, exercise, endocrine disorders and emotional stress. In some people, pressure caused by belts and constricting clothing causes eruption. Urticaria may be a response to infection including the common cold, strep throat and infectious mononucleosis. In the urticaria-prone person, these triggers cause the body to release chemical mediators, including histamine, from cells. Histamine (which causes itchy, runny noses and watery eyes in hay fever sufferers) dilates the walls of blood vessels, allowing fluids to leak out into the surrounding tissues. Swelling and itching are the result.

79. Urticaria / Hives Detailed information on urticaria, also called hives, including what food and medicines commonly cause hives. http://www.healthsystem.virginia.edu/uvahealth/adult_allergy/uticaria.cfm

[ Skip Navigation ] Health System Home For Health Answers Healthcare Professionals ... Advanced Search Health System Search Search for Information People UVa Home Health System News Health System Events (all) Health System Publications ... Making a Gift Topics All About Cancer Blood Disorders Bone Disorders Breast Health Cancer Cardiovascular Disease Dermatology Diabetes Digestive Disorders Endocrinology Environmental Medicine Eye Care Glossary Gynecological Health Infectious Diseases Kidney Disease Men's Health Mental Health Nervous System Disorders Non-Trauma Emergency Oral Health Orthopaedics Otolaryngology Pathology Pediatrics, General Health Prostate Health Radiology Respiratory Disorders Skin Cancer Surgical Care Urology Women's Health UVa Health Topics A to Z uvahealth.com FIND A DOCTOR Allergy and Asthma Pediatric Allergy and Asthma Pregnancy and Asthma ... WHY CHOOSE UVA Search This Site Urticaria / Hives What is urticaria? Urticaria, or hives, is a condition in which red, itchy, and swollen areas appear on the skin - usually as an allergic reaction from eating certain foods or taking certain medicines. What foods commonly cause hives?

80. Word! Urticaria urticaria is the fancy name for hives. KidsHealth Kids WORD! A Glossary of Medical Words U Word! urticaria http://kidshealth.org/kid/word/u/word_urticaria.html

KidsHealth Kids WORD! A Glossary of Medical Words U Urticaria Say: ur-tuh- kair -ee-uh Urticaria is the fancy name for hives. No, not bee hives! Hives are those itchy, red bumps people get on their skin when they're allergic to something, like certain foods or medicines. Allergies are not the only reason someone might get hives. Some infections, hot or cold temperatures, or even stress can make those bumps appear. Your doctor can give you some medicine that can help stop all your scratching. About Us Contact Us Partners Editorial Policy Note: All information on KidsHealth is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

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