Tinea is a fungal skin infection. It sometimes forms a round red rash with a pink central area, so many people also refer to it as ‘ringworm’, although it is not a worm at all! Depending on where the infection occurs on the body, it can also be given other names. Tinea can occur on the scalp (Tinea capitis), nails (Tinea unguium), body (Tinea corporis), or groin area (Tinea cruris).