Patients with very itchy body may be caused by pruritus, eczema, allergic dermatitis, etc. Patients can improve their condition through general treatment and medication. 1. Pruritus: patients should avoid contact with triggering substances, avoid scratching, friction, scalding and washing of the affected area, patients can follow the doctor’s instructions to use topical medications, such as glycerine lotion, lidocaine cream, pimecrolimus ointment and other treatments, to improve the itchy skin and other symptoms. 2. Eczema: patients should avoid external stimuli, such as hot water scalding, violent scratching, excessive wiping. Patients can follow the doctor’s instructions to use topical drugs, such as boric acid solution, halometasone cream, dexamethasone cream, etc.; oral antihistamines, such as loratadine, etc.; oral glucocorticosteroids, such as prednisone, etc.; can also be treated by ultraviolet light therapy to alleviate the symptoms of itching. 3. Allergic dermatitis: For patients with itchy skin caused by allergic dermatitis, allergens should be avoided as much as possible, and antihistamines can be used as prescribed by the doctor, such as cetirizine, ebastine, etc., and topical medications, such as glycerine lotion, yellow zinc oxide cream, etc., can also be used for treatment. It is recommended that patients strictly follow the doctor’s instructions, do not abuse drugs, so as not to aggravate the condition, if the itching symptoms continue to aggravate, should promptly seek medical treatment.