Grey nail (onychomycosis) is caused by fungal infection on the deck and nail bed. The type and method of medication can be determined according to the degree of nail damage, nail growth rate, patient's age, whether there are basic diseases and whether taking other drugs and other factors: 1. External medication, 5% amorofen liniment, can be used for those whose distal deck is less than 50% damaged or whose nail matrix is not damaged, and who cannot take oral medication for various reasons, It can be applied to diseased nails. Not for pregnant women and lactating women. 2、 Oral drugs, commonly used oral drugs include itraconazole, terbinafine and fluconazole. Those with liver and kidney function damage, pregnant women and lactating women should avoid using such drugs. Among them, fluconazole is more suitable for deep and systemic fungal infections, and is less effective for dermatomycosis than itraconazole and terbinafine, so it is less used for the treatment of onychomycosis.
