Hi, I been using chewing tobacco for a couple of weeks now, after which I noticed white areas in my mouth. I realized that I might have leukoplakia, I stopped using tobacco but it continues to remain the same in my mouth. The areas affected are my lower gums and under my tongue. In fact it hurts slightly every time I move my tongue to reach the other ends of my mouth. I Increased my vitamin c and iron intake, as well have been using salt water rinses. How long will it take for everything to clear up.