Urticaria

Urticaria is a kind of skin allergy in which hives (wheals) are formed over skin, sometimes nausea , vomiting, diarrhea, cramps, fall in B.P. ,rhinitis also. Urticaria can be associated with swelling of eyelids, lips, genitalia, this condition is called angioedema. Urticaria is a severely itchy condition that is commonly caused by exposure to an allergen such as food, medication, insect bite, chemical, heat.