I have severe acne, and I tried every treatment on earth, but it turned out that eating oily/fatty food caused my acne. I didn't discover this until in my late 20's. I still get acne at my 40's, if I eat too much fatty food. I can take a burger in a day at most and be fine, but adding fried food and meat definitely is not good for my complexion. Try cutting out certain types of food for a week.