How to treat a minor red scar appeared after a scab is removed following a CO2 treatment?

After i took a CO2 treatment on my old surgical facial scar (on cheek) a scab was formed and when i removed it on the 4-5th day after CO2 treatment date i saw and indented small scar in red. When this minor indention will be recovered or redness will go away as the redness from other main area is now 80 percent decreased. I am more worried about the new minor indented scar (even it is very small) after scab removal. Please comment. Shall i use some kind of ointment or just let it be like this.

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