I know how you feel, I'v been there, for years and years I suffered the same way, but finally I think it is gone, this week I'v been taking calcium, magnesium and zinc in one pill, I heard that zinc is very effective in this case, I tried it and it is gone until now, also I'm eating every day one white potato boiled in skin then pealed because this way it has many minerals that is good for the body and it is helping allot, try that and see if it is working for you, the body is deficient in zinc and other minerals, our food these days doesn't have every thing our body's need, so try it and let us know the result because it is working with me now.