How do it treat abrasions after waxing? I was using Tretinoin 0.025%. (photos)

Hi! I recently started using Tretinoin. I wasn’t aware that waxing while using a retinoids can be harming for the skin. After my first wax after starting retinoids I have abrations around my mouth and chin. Extremely painful and red. Please be kind enough to advice me on how to treat these abrations to minimize scarring and discoloration. And how can can I avoid it in the future. Thank you very much