2, put the vinegar on your hands, remember not to wash it immediately, if you don't like the vinegar taste, you'd better bear it, and it will continue to itch if it is washed immediately. If time permits, it is recommended to wash it as late as possible, which can completely relieve itching.
3. If the above conditions are not allowed, you can also try cleaning with soap.
Extended data
Yam contains saponin. After peeling, there will be a kind of mucus, in which the protein and dioscin will irritate the skin and cause allergies.
Because the saponin contained in yam mucus may cause allergies, contact dermatitis may be caused after human skin contact. The most common symptom is that the hands feel itchy, and in severe cases, symptoms such as redness, swelling and tingling may occur. The time of allergic symptoms often varies slightly. Some people react quickly and itch when cutting their hands. It will take some time for some people to react. This is why many people feel itchy when peeling and cutting yam themselves. At present, there are indeed many clinical cases of contact dermatitis caused by yam.
Saponins that are easy to cause allergies are more afraid of heat. Therefore, if you are afraid of allergies, after peeling or cutting yam, you can wash your hands and then bake them on the fire to relieve the itching; Of course, you can also nip in the bud: before handling yam, you might as well bring a rubber glove, or put a fresh-keeping bag on your hand, and then peel or cut it, so as to prevent contact with substances that may cause allergies, and you don't have to worry about itchy hands.