Persistent redness 1 month post VI peel, different doctor prescribes finacea. How much should I apply? (Photo)

I had a VI peel about one month ago through a groupon to correct some hyperpigmention from cystic acne in my teens. It worked well but I was left with persistent redness around my mouth. The doctor stopped returning my calls. I went to a dermatologist and she prescribed financea. I looked it up and it doesn't seem to be indicated for this- she was super rushed and didn't explain anything to me. Is this a typical treatment ? And how much should I apply? I am waiting for an app with another derm

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