Professional treatment depends on the type of fungus you have, as well as the severity of the infection. You can hide toenail and fungus by switching to sneakers and socks. Similarly, it is also unlikely that a single visit to a pedicurist will cause the infection. When you have to wear a closed-toe shoe, choose footwear that offers plenty of room for your toes to move without being pinched. Recent research has shown promise in laser therapy as an alternative treatment to toenail-onychomycosis. Fungus grows well in warm, moist environments such as showers. Because your toenails are always in your shoes and the warm environment allows fungi thrive, they are more susceptible to developing fungus.