After fresh yam is cut, the plant alkaloids in mucus are easy to cause itching and unbearable. If you accidentally stick it to your hands, you can first clean it with water and a little vinegar, or heat it to promote its decomposition, such as baking it with fire, or cleaning it with slightly hot water.

Yam skin is easy to cause skin allergy, so it is best to peel it, and don't touch it with your hands after peeling it. Wash your hands several times at a time, otherwise you will scratch, and applying cooking oil to your hands will relieve you.