Toenail changes often serve as early warning systems for underlying health conditions, with fungal infections representing one of the most common yet overlooked indicators of immune system function ...

In the case of a severely infected great-toe paronychia, does it matter whether or not you start antibiotics before you perform partial nail removal? —Gregory H. Tuttle, MD, Chapel Hill, N.C.

Unexpected chilblains, unusual rashes, and flareups of existing conditions— Katharine Lang asks experts how the skin can react to covid infection “Covid toes”—swollen and itchy red or purple toes, or ...