R.J.
Sounds like your doctor isn't up on the communication & education part of practicing. Like informing your patients what the heck is going on.
I can think of 50 things it MIGHT be, so good on you for heading to a dermatologist. Although, I hate to say it, but if you've gotten two scripts and you don't know what they're for, or what they're supposed to treat...I'd say it's time to start looking for a new ped.