Yam skin contains saponin, and yam mucus contains saponin, which will irritate the skin, causing skin itching and even symptoms such as redness and allergies. It can be solved by washing hands with fire or hot water, smearing white vinegar, smearing alcohol, smearing ointment, and taking allergy medicine orally. The details are as follows:

1, wash your hands with fire or hot water. Soap base will decompose when it is heated. Wash your hands with fire or hot water in time after cutting yam, which can relieve the symptoms of itching.

2. Apply white vinegar. Apply white vinegar to the red, swollen and itchy place, and then clean it, which can relieve the symptoms of discomfort.

3. Apply alcohol. Spray your hands with alcohol, or wipe your hands with alcohol, and then clean them with soap, which can relieve the symptoms of red itching and tingling to some extent.

4. Apply ointment. If the symptoms continue to worsen and itching is unbearable, you can apply ointment such as mometasone furoate.

5, oral allergy medicine. Antihistamine drugs, such as loratadine.

Before cutting yam, you can wear gloves to prevent mucus from sticking to your hands, which can reduce the occurrence of itching symptoms. If itching symptoms have occurred, don't scratch too much to avoid aggravating skin lesions and threatening your health.