Daktarin Cream Daktarin Cream treats fungal infections of the skin or nails, including infections caused by yeast & some bacteria, such as athlete's foot, ringworm & infected nappy rash. The infection may appear on the trunk, hands or feet, scalp or outer ear or the groin. The active ingredient in Daktarin Cream is miconazole, an antifungal medicine which works by destroying the fungus & associated bacteria which may be present.