This one is an easy one, and something I wish I had known years ago. Vegetable oils (as found in cooking oils like sunflower oil) cause horrible acne. When I stopped eating vegetable oil my acne cleared up DRAMATICALLY in a matter of days.
However, regardless of the types of acne, there is always a good guideline to follow. For example, you should always avoid contact with the effected skin to avoid further irritation.
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