There are only a few fungal infections that are capable of producing systemic disease such as candidiasis. However, a number of superficial types of fungi lives only on the uppermost layer of skin.
As a long-term sufferer of tinea cruris [a fungal infection causing genital itching], I read Harald Gaier’s column with interest (WDDTY vol 14 no 6). However, I’m afraid I’ve gone full circle with the remedy he suggested - Whitfield’s ointment.