Girl22 thats a very good thing that you do, chemical products being applied to skin are so dangerous because they get absorbed by the bloodstream. Natural products are definitely the way to go, as for chemical peels most of them stay on the skin for less than 5 minutes so its not harmful for the skin or the body and they have tremendous results I personally use only natural products but I do chemical peels weekly because they have such great effects!
If you have the money, I'd suggest you buy this: http://www.personalm...m/pages/try-2-0
It is the cost of ONE treatment, and you never have to pay for another again because you'll have that machine
Watch the video, it seems to be very good investment. I would get it myself if I had the money! Anyways, good luck. Keep in mind that picking, drying, and popping will just cause more scarring. In order to greatly reduce scarring you have to be gentle with your skin. Sun exposure can darken the marks, and benzoyl peroxide can also do this to your marks. However, it is more important to treat your acne before treating your acne marks. If you stop the acne, then you won't have new marks to worry about 
Good luck, I hope you get good results.
-Mel 
Microdermabrasion is really good but its basically like a little stronger version of exfoliating theyre not that effective as chemical peels. Chemical peels done at home cost around 10-20 dollars, where as this costs 180 and chemical peels will probably have the results of 4 months of use with that machine.