Hypopigmentation after TCA Peel. Can phototherapy help with repigmentation?

I had a TCA peel with a derm, but it was too deep and left me with chemical burns, at the end it left me with hypopigmentation all around my face. The hypopigmentation zones are not depigmented (they are just a bit lighter than my normal color). The procedure was done a year ago. Are they gonna be repigmented again? I still have black hair follicles, is that correct that phototerapy can help with repigmentation if there are still melanocytes in hair follicle? Thank you