The UK has seen a significant rise in cases of ringworm among men visiting barbers , and a dermatologist has issued a warning over the one thing sufferers must do. The immensely popular skin fade haircut is thought to be behind the increase, as well as the use of "cheap, dirty unqualified barbershops" which health experts claim are "littering" the UK high street. Ringworm is a common fungal infection treated using over-the-counter medicine you can purchase at the pharmacy, according to the NHS .