I Have Rectangular Markings 3 Days Post-IPL on Chest/Neck. How Can I Heal Quickly?

I am terrified that I will have permanent marks after reading many horror stories. I've had this done before (2 years ago)and didn't have the markings. I was tan and had been using self tanner prior and now I see that the treatment should never have been done over any type of tan. Am I supposed to keep it moist or let it dry and flake off? Is there anything I can do to speed up the healing. If I look blotchy in a couple weeks can I use obagi or glycolic acid to even out the missed spots? Help!