2, you can put it on the fire, but be careful not to burn the skin, repeatedly turn the palm to heat the hand, so that it can partially decompose the saponin infiltrated into the hand.
3. You can wash your hands with cool oil or toilet water or rub your hands with rice repeatedly, which can also relieve itching.
Therefore, before peeling yam, be sure to put on gloves, and then peel it, or prepare a pot of boiling water and cook yam directly in water to avoid causing allergies.