It wasn't mentioned that the skin is an organ that helps remove toxins and impurities from the body, validating it is an internal as well as external problem.
I don't believe any specific foods such as dairy or sugar may necessarily cause or make it worse. I think that is a very individual thing.
I thank the folks for the turmeric info. I am gonna try that asap. I mostly have it in my scalp. Applying oily greasy stuff does not make for a good hairdo. lol