Itchy red bumps on the body, clinically seen in urticaria, eczema, folliculitis, etc.. Generally use medication, etc. 1. Urticaria: avoid contact with allergens. Generally use medication, including antihistamines such as benadryl, cyproheptadine, cetirizine and so on. 2. Eczema: acute lesions are dominated by herpes papules with a tendency to ooze. It is characterized by pinpoint-sized milia, with blisters in severe cases. Itching is intense. Acute phase without exudate can use glucocorticoids such as dexamethasone, etc. Excessive exudate can use boric acid solution. 3. Folliculitis: mostly caused by bacterial infections, the lesions are initially red follicular papules, pustules appear in the center for a few days, surrounded by a red halo. Generally, topical drugs are the main, early unpurulent can use ichthyol ointment, can also be used externally mupirocin ointment. Systemic treatment can use quinolone, penicillin antibiotics. If the skin on the body appears red packet very itchy, need to seek medical treatment. Self-medication is not recommended to avoid serious complications.