White vinegar should not be used to treat ringworm because it does not have the effect of killing the fungus. On the contrary, due to the irritating nature of white vinegar used after applying ringworm, it may cause localized allergic symptoms of ringworm. A well-defined erythematous plaque may appear, on which there may be vesicles, oozing, crusting, blisters, accompanied by a certain burning pain and itching. If this occurs, anti-allergy treatment can be administered orally with levocetirizine hydrochloride granules and wet application of Phellodendron japonicum application, which can be used to treat the allergy caused by white vinegar on the one hand, and to treat the fungal infection caused by ringworm on the other. The antifungal treatment should be carried out only after the rash has subsided and terbinafine hydrochloride gel should be applied twice a day.