Nystatin is primarily used to treat fungal infections caused by a specific type of fungus called Candida. This medication works as a powerful antifungal and is effective in treating oral candidiasis, also known as oral thrush, which is a fungal infection of the mouth and tongue that appears as painful white patches. It is also used to treat vaginal candidiasis in women. This is done by applying the medication as a cream or vaginal suppository to eliminate the infection.
Nystatin may be prescribed to treat fungal skin infections caused by Candida in moist areas of the body, such as the armpits or genital area. It is applied topically to relieve symptoms and eliminate the fungus.