The first thing you can do is to use water to rinse your hands to relieve the symptoms, and if the symptoms are not relieved or are more serious, you can use topical or oral antihistamines and glucocorticoid drugs to treat them. 1. Wash your hands: peeling Chinese yam hand itchy because the hands in contact with the yam contains plant alkali and saponin and other irritating ingredients, resulting in an allergic reaction to the skin, resulting in itchy skin, redness, swelling and other symptoms occur. At this time, you can use water to rinse your hands to reduce the residue, thus reducing the symptoms of itchy hands. 2. Topical medication: After rinsing with water, if the symptoms do not improve, you can use topical medication to reduce the itching symptoms of the hands, you can also apply glucocorticoid ointment, such as Dinocap ointment, dexamethasone ointment, etc., which can play an anti-inflammatory, anti-itching effect. 3. Oral medication: when external medication fails to relieve the symptoms, you can take oral antihistamine medication, such as cetirizine and loratadine. Cutting Chinese yam hand itch by general treatment can not be relieved after, it is recommended to promptly go to the hospital, do not unauthorized use of drugs to avoid adverse reactions.