Allergic itchy acne on the face may be caused by eczema, contact dermatitis, atopic dermatitis and other diseases, usually, the treatment includes general treatment, medication and so on. 1. General treatment: if eczema, contact dermatitis, atopic dermatitis caused by acne on the face, the patient should avoid re-exposure to disease-causing factors, and should not vigorously scratch, excessive cleaning of the affected area, so as to avoid aggravation of the condition. 2. medication: patients can follow the doctor’s instructions for external use of glucocorticoid drugs, such as hydrocortisone, trimethoprim, etc., with anti-inflammatory, anti-allergic effect, but also follow the doctor’s instructions to take antihistamines, which can play a role in stopping the itching, anti-allergic effect, common drugs are cetirizine, loratadine, etc.. Allergies on the face itchy acne may have other reasons, it is recommended that patients go to a regular hospital to check, follow the doctor’s instructions standardized treatment, do not blindly deal with their own.