Itchy hands after cutting yam may be caused by contact dermatitis from the mucus on the yam. It is recommended to pay attention to the cleanliness of the hands, give antihistamines or go to the hospital for treatment if necessary. 1. Pay attention to hand cleaning: If you are allergic to the ingredients inside the yam, contact with the yam can cause allergic symptoms, resulting in itching. It is recommended to use water to clean the mucus of the yam in a timely manner, you can also use light salt water to wash the skin, which can help improve. 2. Medication: The symptoms of itching are more obvious, can be combined with the doctor’s advice to give loratadine, fexofenadine, olopatadine hydrochloride, topical dinexed cream, can reduce the release of histamine in the skin, can relieve the itching of the skin. 3. Go to the hospital: If the symptoms cannot be improved by the above methods, or if they are further aggravated, especially when blisters appear on the skin, it is necessary to go to the dermatology department of the hospital in time, and ask the doctor to deal with it.