Amorolfine Hydrochloride Cream is less effective against gray fingernails (also known as “onychomycosis”) and is not generally used for the treatment of onychomycosis. Amorolfine Hydrochloride Cream is a topical antifungal drug, which has a good therapeutic effect on a variety of skin-causing fungi, such as Trichophyton rubrum, Candida albicans and so on. It is commonly used to treat superficial fungal infections such as ringworm, tinea pedis and lichen planus. Nail fungus is a disease of the skin appendages caused by fungal infection, usually caused by disease-causing fungi that cause damage to the nail plate or nail bed, making the nail plate hypertrophic, degeneration, and so on. It is difficult for topical cream formulations to penetrate the nail bed and provide a therapeutic effect; in addition, the concentration of amorolfine cream is relatively low, making it less effective in treating onychomycosis. Tinea cruris can be treated with oral antifungal drugs such as itraconazole and terbinafine, and topical drugs usually use amorolfine application, which has higher concentration and stronger penetration, and can act on the nail bed, which has a better therapeutic effect on tinea cruris. The treatment period for onychomycosis is usually long, so you should consult your doctor before using the medication, and it is recommended that you use the medication in a standardized way under the doctor’s guidance.