How to treat PIH after 30 percent chemical peel?

I went to a dermatologist, a little over a year ago to have a chemical peel on my chest and arms. I was under the impression that she was going to start with a lighter peel, but when we finishe, she told me I was treated with a 30 percent TCA peel. After healing, my arms still look blotchy and the pigment is uneven. I am topically treating with teritonon, and HQ (8 percent). Are there any other protocols that would be good to try?