Itchy skin with red bumps, generally considered to be a disease caused by allergies, can be treated with the following methods: a. Antihistamines. You can take oral loratadine capsules, levocetirizine hydrochloride tablets, epinastine hydrochloride tablets and so on. Second, corticosteroids. If the effect of anti-allergic drug treatment is not good, you can take oral prednisone acetate tablets, or inject tretinoin injection. Third, topical drug treatment. Can be used externally mometasone furoate cream, dehumidification and antipruritic ointment, ethoxybenzolimine ointment, boric acid zinc oxide ice cream and so on. Fourth, traditional Chinese medicine treatment. You can orally take skin itching granules, moistening dryness and relieving itching capsule, Fangfeng Tongsheng pill and so on.