I have seen it take up to a year for all of the redness to go away.
In regards to having less hair, you may have lost some of the non-transplanted hair. If a patient doesn’t go on Propecia and we transplant in an area where they are only thinning, once they lose the non-transplanted hair they may mistake the two and think they have lost what they gained from the surgery.
If that is the case the only option you have is to go back and transplant what you have lost.