Fungal infection of skin. Neck blouses!

I have been having this white patches in faces very small since few days .... the patches in my chest are slightly dark in colour than the one in faces and bigger in size comparatively . I always get this and this goes off for a period and returns. Once I consulted a dermatologist in mylapore and she told me that I have a skin which is weak and prone to these kind of fungal infection. She prescribed me nizral 2% solution a a tablet which she asked to take only two doses each tablet each week. And she added that I can use this whenever I get this infection. I somehow missed the prescription and I don't remember the name of the tablet. It been years later that I got this infection again. I use cotton cloths and bath twice. I basically Sweat a lot . I get this fungal infection very often . Can I get rid of this permanently. I need help . Sometimes I feel embarrassed when people ask me looking at those small small white spots on my back shoulder bcoz of which I don't wear deep neck blouses