Cutting Chinese yam after hand itching may be due to contact dermatitis, should be immediately away from the yam, if the hand only appeared itching symptoms, can be washed with water; if the hand appeared to be intense itching, obvious redness and swelling and other cases, need to go to the hospital in a timely manner to seek medical attention. Cutting Chinese yam itchy hands may be allergic to yam caused by contact dermatitis, the first need to stay away from yam, avoid contact again, to prevent secondary infection. If the hand is only slightly itchy, you can choose warm water, soap to clean the affected area. If the hand itching is intense, it is recommended to consult a doctor, follow the doctor’s instructions for external glycerine lotion, or hydrocortisone ointment, dexamethasone ointment and other glucocorticosteroid drugs, to help anti-inflammatory, anti-itching. For cutting Chinese yam after the hand itchy people should immediately away from the yam, and observe their own situation, if there is a serious abnormality need to immediately consult a doctor, with the doctor for standardized treatment.