A fungal skin infection happens when a fungus (such as yeast or mold) grows and creates a reaction on your skin surface.

Medically reviewed by Susan Bard, MD A rash under your breast may commonly be caused by warm temperatures, friction, or excess moisture. Sometimes, bacterial and fungal infections, eczema, allergic ...

Special stains such as Parker's blue ink can the fungus even more visible. A Wood's lamp, commonly used to diagnose other fungal skin infections, is less helpful with jock itch.

Fungal skin infections (also known as candidiasis) can develop in areas of intertrigo and are more prevalent in warmer climates and in the summertime.

If there’s fungus under multiple nails, or if the toenails are extra thick, Lipner said, she usually opts for oral prescriptions. These pills, terbinafine or itraconazole, can kill toenail ...

Toenail fungus can start as a case of athlete's foot, and then spread to the nails. People who are older are at higher risk. As you age, circulation gets worse, leading to more brittle toenails ...