Itchy body after the bath belongs to urticaria, lack of fat dermatitis, contact dermatitis and other diseases caused by the need for a clear diagnosis, choose the appropriate drugs, treatment. 1. Urticaria: After the diagnosis of this disease, usually can be treated with topical antipruritic agents, such as glycerine lotion, zinc oxide ointment, etc., such as obvious itching, you can use topical glucocorticoids to improve the symptoms, such as hydrocortisone cream, mometasone acetate ointment, etc.; such as itching is intolerable, you can take oral antihistamines, such as chlortetracycline, cetirizine and other treatments. 2. Lack of seborrheic dermatitis: can be treated with external moisturizers, such as urea cream, silicone cream, etc.; itching is obvious, external glucocorticoid therapy, such as hydrocortisone cream, dexamethasone ointment, etc.. 3. Contact dermatitis: no ooze, can be used externally to stop the itching agent treatment, such as glycerine lotion, phenol, etc.; oozing, can use boric acid, aluminum acetate and other solutions for cold wet compresses; if necessary, the use of glucocorticosteroids to improve the symptoms, such as dinexed cream, etc.; itching is intense, oral antihistamine treatment, such as loratadine, cetirizine, etc.. It is recommended that patients go to a regular hospital dermatology consultation, after a clear diagnosis, under the guidance of the doctor reasonable medication, not blindly self-medication, to avoid delaying the condition.