Gentian violet, a purple dye available over-the-counter, has anti-fungal qualities that make it useful in the treatment of yeast infections, notes the Gentian Research Network.

Thrush is the common name for an overgrowth of a specific kind of yeast in your mouth. There are several underlying conditions that make you more susceptible to thrush, and some medications can also increase your chances of getting thrush.

Oral thrush is a yeast infection in the mouth caused by overgrowth of a species of yeast called Candida albicans. This condition is characterized by painful lesions that are whitish in appearance and form on the tongue and mucus membranes of the mouth.

Thrush results when a fungus called candida grows in your mouth, explains MedlinePlus. You can minimize or eliminate oral thrush by restricting certain foods from your diet.

Oral thrush is caused by an overgrowth of yeast organisms in the mucous membranes of the mouth. Easily identified by the appearance of white patches on the tongue, sides of the mouth or throat, thrush is most common in infants and in people who wear dentures.