1, by the yam on the hand is very itchy, may be on the hands of some of the ingredients of the yam allergy, especially on the yam juice to produce allergic symptoms. So for this case, generally first use soap, the yam juice in time to wash away.

2, after a light wash, you can properly apply hormonal topical drugs.

3, of course, if this itching continues to expand, or is induced by other parts of the body of the skin itching, need to take oral anti-allergic drugs in time.