Usually ketoconazole ointment can be applied to the scalp, but should not come into contact with the eyes. This medicine treats ringworm and tinea pedis and has antifungal properties. Usually, ketoconazole ointment can be applied on the scalp, which belongs to the normal range of use, patients do not need to worry too much. However, patients should remember to avoid contact with eyes in the process of using the medicine. In addition, ketoconazole ointment can also be used externally on the hands, feet, trunk and other parts of the body. From a pharmacological point of view, ketocontaxol ointment can play an antifungal role, and it can be used clinically to treat superficial fungal skin infections, such as ringworm, tinea pedis, tinea cruris, tinea cruris and so on. Secondly, some patients may experience adverse reactions such as erythema, tingling, folliculitis, dry skin, and hirsutism after using ketoconstatosol ointment, and prolonged use of the drug may cause hypercorticism. It is contraindicated in people who are allergic to this drug. Viral infections such as herpes and chickenpox are prohibited. Pediatrics, pregnant and lactating women are prohibited. In conclusion, patients must use ketoconazole ointment externally under the guidance of a doctor, do not self-medication, so as not to delay the condition.