Ketoconazole lotion does not contain hormones and does not have the side effects of hormonal drugs. The main ingredient of ketoconazole lotion is ketoconazole, which is a broad-spectrum antifungal drug. Ketoconazole lotion is mainly used for scalp pityriasis (dandruff), but also for localized pityriasis floridis, commonly known as lichen planus or sweat spot, etc., and seborrheic dermatitis. Patients should discontinue the drug and consult a doctor promptly if symptoms do not improve or worsen after 2-4 weeks of use. The drug should not be used on broken skin during use. If burning sensation, redness and swelling occur at the site of drug use, the drug should be stopped immediately and the local drug should be washed away, and a doctor should be consulted if necessary.