After a glycolic acid peel, how can I treat and prevent scars? (photos)

I have dissolved 10 drops of 70% concentration in 5 drops distilled water. I think I left it too long on my skin since it started burning and it was extremely red. My skin looks like swollen, it hurts and has already darker spots. I am applying cicalfate. What should I do better, how can I prevent marks or treat them afterwards? Thank you.