If your hands are itchy after cutting yams you can wash your hands with water immediately. If the itching is severe it can be treated with drugs such as antihistamines or topical hormone ointment. The saponins contained in the yam skin and the plant alkaloids contained in the mucus can irritate the skin and cause symptoms of skin sensitization or irritation, which is classified as contact dermatitis. The most common symptoms are itchy hands, severe redness, swelling and stinging. When this happens, you should immediately stop touching the yam and immediately wash your hands repeatedly with water to wash away as much residual mucus from the skin as possible. If the itching is severe, antihistamines such as chlorpheniramine maleate tablets and cetirizine hydrochloride tablets can be used. Topical hormone ointment such as compound dexamethasone ointment can also be used to relieve itching, anti-inflammation and symptoms. When patients experience intense itching or other discomfort after peeling yam, it is recommended that they go to the hospital in time, and they should use the medication under the guidance of the doctor to avoid causing adverse effects.