I had the same problem in high school - good times!

I don't know about Bio Oil, but I'd definitely advise against cocoa butter. Generally the oil causes or makes the condition worse, so to add more is not a good idea. The best treatment, I've found, are acne treatments containing salicylic acid. It dries out the blemishes and encourages the regeneration (healing) of the skin. I'd use a body wash for acne, containing salicylic acid (Neutrogena and Clean and Clear are 2 good brands), and one of those nylon poufy scrubby things (don't know what they're really called! LOL). Gently scrub the affected area - you don't want to irritate the skin, but you do want to get the area exfoliated. Then, follow with a lotion with salicylic acid (both brands make them). In two weeks, you'll see a definite difference. Oh, btw - you may want to limit your exposure to sun on your back, because the salicylic acid can make your skin a little more sensitive. Good luck at the dance show!
