Treatment of onychomycosis: The treatment of onychomycosis should be based on the clinical classification, degree of involvement, thickness and location of the diseased nail and the age of the patient. Commonly used topical drugs are amorofen nail liniment or cycloacetone ammonia nail liniment, which can penetrate into nails. General ointment for external use is difficult to penetrate into the deck, so ointment or cream is not selected for external application. The oral drug can be terbinafine, 250 mg per day, for fingernails for 4 to 9 weeks, for foot nails for 9 to 12 weeks, or itraconazole, 400 mg per day, 7 days and 21 days off, which is an impact treatment. The fingernail needs two shock treatments, while the toenail needs three to four long shock treatments. These two drugs have good after effects, that is, three to nine months after drug withdrawal, there are still high concentrations of drugs in the nail, that is, there are continuous follow-up effects
