Yam allergy itchy hands is considered to be caused by contact dermatitis, the patient can take general measures, medication and so on. 1. General measures: contact dermatitis patients with itchy hands allergic to yam should avoid contact with yam again, once there is contact, patients should immediately rinse with water to avoid aggravating the symptoms. Patients should not use hot water to rinse, to prevent scalding the skin and aggravate the symptoms. 2. medication: patients with atopic dermatitis can follow the doctor’s instructions to use hydrocortisone butyrate cream, mometasone furoate ointment and other glucocorticosteroid ointment for treatment, but also mupirocin ointment, erythromycin ointment and other antibiotic ointment treatment. Patients can also take oral cetirizine hydrochloride tablets, loratadine tablets and other antihistamines as prescribed by the doctor for treatment. Yam allergy hand itchy patients should promptly rinse hands and timely to the hospital. The use of drugs need to follow the doctor’s instructions, patients should be under the guidance of the doctor standardized use of drugs, avoid unauthorized use of drugs.