Sue,

The person that mentioned the Saw Palmetto and Beta-Sitosterol was offering good advice. Basically, people have oily skin because their sebaceous glands are overly responsive to testosterone, even modest amounts. Given the aforesaid, supplements/drugs that block androgen receptors tend to work quite well. Given, you are a girl, you can also try the drug spironolactone, which works in a similar way to the supplements I mentioned. Good luck!