Medically reviewed by Katlein Franca, MD Toenail fungus, or onychomycosis, is a nail infection that can make your toenails thicker, change color, or break apart. It affects about one in 10 people and ...

How to tell if you have psoriasis or ringworm as these two skin conditions look similar but need completely different ...

Fungal infections of the skin are very common. Learn about symptoms, causes, and treatments for common fungal infections, including athlete's foot, jock itch, ringworm, and yeast infections.

Potassium permanganate is a chemical compound that’s used to treat several kinds of skin conditions, including bacterial and fungal infections. Learn about the possible side effects and how to ...

Potassium sorbate prolongs the shelf life of foods by stopping the growth of mold, yeast, and fungi. It was discovered in the 1850s by the French, who derived it from berries of the mountain ash tree.