An itchy body after a bath can be a symptom caused by physiological factors such as dry skin, or it can be a symptom caused by diseases such as atopic dermatitis and hives. Patients can relieve the symptoms through general treatment, medication and other ways. 1. Dry skin: The protective lipid film layer on the body is rinsed off after bathing, and the skin becomes drier, resulting in itchy symptoms. Patients need to pay attention to moisturizing, can be used in the local cream with moisturizing effect, so as to relieve the local symptoms. 2. Allergic dermatitis: patients may come into contact with certain allergenic substances during the bathing process, thus causing allergic dermatitis. Patients may experience redness, swelling, itching, peeling and other symptoms. Allergic dermatitis patients can use cold towel ice packs, sedation and itching. At the same time can be used under the guidance of the doctor glycerine lotion, hydrocortisone ointment and other topical drugs, if necessary, oral loratadine, cetirizine and other drugs. 3. Urticaria: The stimulation of hot water in the process of bathing can easily cause urticaria, resulting in the emergence of skin tingling, itching and other symptoms. Patients with urticaria should pay attention not to scratch the local skin. Patients can use topical glycerine lotion, Dinaid cream and other drugs, external drug treatment is ineffective patients can also take oral ebastine, cetirizine and other antihistamines to relieve symptoms. Patients need to pay attention to, the above drugs should be used under the guidance of the doctor, patients can not be used on their own, so as not to delay the condition. Patients who exclude the influence of physiological factors should go to the hospital in a timely manner, under the guidance of the doctor for regular treatment.