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See interactions with nutritional supplements and food, and how they may increase the effectiveness or reduce side effects with this medicine
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Ketoconazole is used to treat skin infections such as athlete's foot, jock itch, ringworm, and certain kinds of dandruff. This medication is also used to treat a skin condition known as pityriasis (tinea versicolor), a fungal infection that causes a lightening or darkening of the skin of the neck, chest, arms, or legs. Ketoconazole is an azole antifungal that works by preventing the growth of fungus.
Use this medication on the skin only. Clean and thoroughly dry the area to be treated. Apply this medication to the affected skin, usually once or twice a day or as directed by your doctor. Dosage and length of treatment depends on the type of infection being treated. Do not apply this more often than prescribed. Your condition will not clear faster, but side effects may be increased.
Apply enough medication to cover the affected skin and some of the surrounding skin. After applying this medication, wash your hands. Do not wrap, cover or bandage the area unless directed to do so by your doctor.
Do not apply this medication in the eyes, nose, mouth, or vagina. If this medication gets in the eyes (e.g., when used to treat dandruff), rinse thoroughly with water.
Use this medication regularly in order to get the most benefit from it. Remember to use it at the same time(s) each day.
Continue to use this medication until the full prescribed amount is finished, even if symptoms disappear after starting ketoconazole. Stopping the medication too early may allow the fungus to continue to grow, which may result in a relapse of the infection.
Inform your doctor if your condition persists after the prescribed amount of treatment or worsens at any time.
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