Condition analysis: Urticaria, commonly known as wheals, is a common allergic skin disease. Various factors cause temporary inflammatory congestion and large amounts of fluid exudation in the blood vessels of the skin and mucous membranes. Cause local edematous damage. It occurs and subsides rapidly, with severe itching. There may be fever, abdominal pain, diarrhea or other systemic symptoms.
Guidance: Sudden onset can occur at any age. After the skin is exposed to cold wind, cold water, etc., itchy edema and wheals may appear locally within a few minutes, which may last for 30 to 60 minutes and will be relieved after keeping warm. The first step in treatment is to eliminate the cause. Western medicine can use the anti-allergic drugs chlorpheniramine, Claritan, ketotifen or some hormones. Traditional Chinese medicine needs to be treated based on syndrome differentiation.