Is Retin A Gel a good solution or is there a better option to deal with scars? (Photo)

I have scarred bumps (keloids?) from piercings that haven't gone away. My doctor prescribed Retin A Gel, but it burns my skin and causes peeling around the bumps, without affecting the actual bumps. Should I wait it out and continue with the treatment or is there a better option? (Scars beennthere between 4months - - a year and a half)

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