The first peel at the dermatologist was what they called a "light" peel. He had some temporary redness but his skin never actually peeled. The subsequent peels were more "extensive" and his skin actually turned brown and peeled within two to three days. Unfortunately, I do not know the exact type of peels he was given.
We will try 2 more peels with Salicylic Acid 15 as you suggested and see how he does. Will Salicylic peels bring "in process" infections to the surface more quickly?
Thank you for your quick response!