J.H.
My friend has the same problem, he also used all kinds of stuff and saw lots of doctors to have no long lasting results. In the end he took digestive enzyme and the skin problem is gone. You can find the information through the following link. Enzyme helps to break down food and protein, supports regularity of bowel movement. The other function is it purifies the blood; gets rid of waste stuff in the blood.
http://www.marketamerica.com/zaiminghu/product-10334/migh...
You can also try this clear shield mousse which has amazing results for skin problem for my friends. One friend's one month old baby girl had rash all over her face for a long time. Her mom put this mousse on her face, within a few days, the baby girl's face cleared of the rash. You can try it on a small spot first to test it. Hope these will help.
http://www.marketamerica.com/zaiminghu/product-2201/clear...