Using Retin-A for 3+ Years and Dead Skin is Still Peeling Off. How Long Until I See Normal Skin Again?

I must have gotten a 2nd degree burn. This burn covered my face, neck, and chest, even in the outline of my shirt. The right side of my neck finally shows somewhat normal skin but the rest is still reddish and sun damaged. I peel off dead skin almost every day and I'm so tired of it. Has any doctor come across anything like this before and did the skin finally heal? Please help.

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