How long can allergic urticaria be cured?

Urticaria is a localized edema of skin and mucosa due to temporary increase in vascular permeability. Acute urticaria is manifested as erythema scattered all over the body, or wheals, locally accompanied by itching. In severe cases, it can show chills, fever, abdominal pain, diarrhea, even throat involvement. Bronchus shows dyspnea and anaphylactic shock. For acute urticaria to remove allergic factors, after appropriate anti-allergic treatment, generally 1~2 weeks can be completely cured, some patients may turn to chronic urticaria, more than six weeks for chronic urticaria. The above health science knowledge is for reference only.