Yam skin allergy caused by itchy hands, first of all should be detached from the allergen away from the yam skin, and then follow the doctor’s instructions for medication. 1. from the allergen: if contact with the yam skin caused by itchy hands and other allergic symptoms, first of all, should be away from the allergen away from the yam skin, as well as to avoid contact with the yam skin in the future. 2. medication: can follow the doctor’s instructions with 3% boric acid solution cold wet compresses, help clean antibacterial, astringent swelling, relieve itching. If the itching symptoms of inflammation, can be prescribed topical glucocorticoid cream such as Dinaid cream to inhibit the immune inflammatory response, oral antihistamine drugs such as loratadine desensitization treatment. If there is contact with the skin of the yam allergy caused by itchy hands, it is recommended to go to the regular hospital in a timely manner, under the guidance of the doctor for standardized treatment.