What do i use for athlete foot? my fat thumb nail is effected how do i treated?

Oral antifungals: For athlete's foot, you can use over-the-counter antifungal creams such as tolnaftate, clotrimazole, or miconazole. However, when the nails are affected (onychomycosis), topical drugs don't usually work, and you have to get a prescription for oral terbinafine (lamisil) or itraconazole (sporonox). Talk to your doctor.

Many: It may be the beginnings of a fungal toenail infection. There are many treatments, including topical solutions, oral medications, laser treatments, surgical removal, homeopathic remedies, etc. The most used treatment is oral Lamisil (terbinafine) tablets once daily for 90 days. See a podiatrist for what may be best for your specific needs and expectations.