#Urticaria

1 person in six will suffer from these conditions over the course of their lifetime, and often in a variable fashion. Sometimes it is because of a true allergic reaction, triggered by a food, a medication, an insect sting, exposure to a chemical product, or another sensitizer such as latex.

However, most commonly, urticaria is not allergic in nature. Consequently, it should be no surprise that the allergist will frequently not suggest allergy skin tests.
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Definition of urticaria:

Urticaria is a disease characterized by the development of raised welts or #hives, #angioedema (swelling) or both at once. Hives or urticaria are localized itchy and swollen plaques of variable size; lesions are fleeting, last less than 24 hours in the same spot, and don't leave a trace. When the swelling involves deeper tissues, we speak of "angioedema".

Classification of urticaria and angioedema

Urticaria and angioedema

Acute (lasting less than 6 weeks)

Allergic (food, medication, insect, contact)

Infectious (viral, bacterial, parasitic)

Idiopathic (no cause identified : many cases are likely viral in origin)

Chronic (lasting more than 6 weeks)

Spontaneous : 90%

Auto-immune 40%

Idiopathic (of unknown cause) 50%

Inducible : 10%

Physical urticarias

dermographism

from cold, from heat

from the sun

from delayed pressure

vibratory

aquagenic

Investigation: #Allergytesting

Treatment: oral antihistamine like levocitrizine, fexofenadine, cetrizine, ebastine, hydroxyzine.

Oral and Topical steroids on doctors advice.

omalizumab injection is a newer drug. FDA approved for more then 6 years of age in ideopathik urticaria. It's a costly but effective injection. which can give long-term remissions..

this video is just a general information about your problem. but for treatment please consult a doctor.

Dr Avyact
Senior Consultant Pediatric
and Allergies

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