Moisturize, Sunscreen and See a Dermatologist
You essentially performed a medium depth peel on yourself. You will heal fine, but will likely become a little darker or lighter in the area for a short period of time. You should avoid any scrubs, harsh topical creams, or any other peels for now; moisturize the area with a cream such as cerave during the day and aquaphor at night; a broad spectrum sunscreen should be placed on at least twice daily; and you should see a dermatologist with expertise in chemical peels and lasers, as they will be able to manage your complication and get you on the right track. I would suggest contining with a dermatologsit you trust to perform peels and manage your future skin care. I wish you the best of luck, Dr. Emer.
Chemical Peel from Retin-A
Unfortunately you irritated your skin from peeling yourself too often and too strong and using too much Retin-A in conjunction. I would use moisturizers, sunblocks and stop using these products. Please find a board certified dermatologist for a consultation to treat these discolorations and help you in the future.
Potential Chemical Burn
Self treatment can be very dangerous and should be avoided. I would suggest visiting a local board certified physician immediately to prevent any permanent damage. I would suggest you discontinue use of any products aside from a mild moisturizer until the situation can be addressed by a professional.
Chemical burn from Retin A and Lactic Acid use?
The best advise is 1. STOP self treating, 2. Seek in person opinions from boarded docs in your city/state...