Cutaneous fungal infections that generally require systemic antifungal therapy include tinea capitis and onychomycosis. Tinea capitis, which is most often caused by Trichophyton tonsurans ...

Depending on the underlying cause, you may also feel pain or discomfort if the cause is more severe. If caused by onychomycosis (toenail fungus), you may notice a yellow, green, or brown color on ...