Clinically there is no hand contact with the yam skin is very itchy fast relief, can be relieved by ice localized wet compresses, taking medication and topical medication under the advice of a doctor. 1. Ice localized wet compresses: the vast majority is due to the skin allergy caused by the yam skin. You can use running water to rinse the area to relieve the itching, and you can use clean cool gauze or ice to apply a localized wet compress for about 20-30 minutes. 2. Take medicine: yam contains plant alkali, saponin and other ingredients, hand contact will appear itching, redness and swelling and other symptoms. Consider oral anti-allergic drug treatment, such as cetirizine hydrochloride dispersible tablets, loratadine and other drugs can relieve the patient’s itching symptoms. Severe acute patients, can consider using methylprednisolone, betamethasone and other glucocorticoid drugs, so as to achieve the effect of reducing symptoms. 3. Topical drugs: patients with severe itching can be prescribed external glycerine lotion or boric acid solution, if the patient’s skin is swollen can be used externally mometasone furoate ointment, dinexed cream and other drugs coated with the affected area, in order to achieve the purpose of stopping itching, anti-inflammatory. Hand contact with yam skin is very itchy patients, after general treatment does not improve or serious condition, need to consult a doctor in a timely manner, under the guidance of the doctor standardized treatment.