Gray nails that is, ringworm of the nail, amorphophallus hydrochloride cream can generally treat ringworm of the nail, but the effect of separate topical medication is not good, can be under the guidance of the doctor combined with oral antifungal medication for treatment. Ringworm of the nails is mainly related to the infection of the causative organisms such as Trichophyton tinea pedis and Candida. Amorphophallus hydrochloride cream is suitable for skin fungal diseases caused by skin fungi, such as tinea corporis, tinea cruris, skin candidiasis, etc., with antibacterial and bactericidal effects. Adverse reactions such as erythema, skin irritation and itching may occur after use, and it is forbidden for lactating women, pregnant women, children and those who are allergic to this product. Due to the ineffectiveness of topical medication in treating onychomycosis, it can be treated with a combination of oral antifungal medication, such as itraconazole, terbinafine, and so on. For patients with onychomycosis should go to a regular hospital, under the guidance of the doctor to use drugs, strictly prohibit unauthorized use of drugs.