Skyler, as long as you resist the scratching and don't make yourself bleed, then you should have no scars. You will have the white spots like your friend this summer for a while, but should blend in after the skin has a chance to gain it's tan back. If you have scabs, treat them with neosporen or vitamin E oil and no scaring should occur.
I have have PO many times and it just needs to run it's course. good luck.