chronic idiopathic urticaria

Chronic idiopathic urticaria is also a kind of chronic urticaria, general urticaria repeated attacks more than 6 weeks is chronic urticaria. Chronic urticaria good hair in spring and autumn season, constitution sensitive people easy to suddenly repeated attacks, chronic urticaria causes and food, drugs, infections, animal fur, pollen and so on are related. Can be manifested as skin lesions were wheal-like, ruddy and convex, clear boundaries, if it is scratched, then the more tickling, showing strip-shaped traces, will soon fuse into a piece. Generally lasting within 1 hour can be self-relieved, some serious patients will last for more than several hours.