@dlw950 Welcome to Mayo Clinic Connect! Dang, that's too bad the margins were not clear. Perhaps it is because of the location?

Everyone seems to have a similar experience when it comes to "getting back to normal" after using a fluorouracil treatment. In my experience, it was gradual after the treatments stopped, maybe a couple of weeks of lessening redness, then gone. At about the 4 week mark or so, I started using a light moisturizer on my face to help lessen the discomfort, making sure it was sparingly applied.

Have you returned to the doctor for post-procedure follow-up, yet? Have you posted this question to them, and what was their response?
Ginger