Infectious urticaria requires symptomatic treatment of the cause of the infection, usually mainly cephalosporin antibiotics or azithromycin, but also clindamycin, etc. If you are not allergic to cephalosporins are generally preferred. Infectious urticaria is also more common in the clinic, often the color of these urticaria lesions is bright red, and the area of the lesions is relatively large, and may even appear eyelids, lips edema and so on. Therefore, in addition to anti-allergy treatment, the cause of the hives must be treated to keep the infection under control in order to completely cure the hives.