Infected gum over wisdom tooth?

About a week ago I went to the dentist because the gum over my wisdom tooth (which has not erupted yet) was hugely swollen, red, and extremely painful. He gave me some chlorhexidine mouth rinse to use and it took about 5 days for it to feel any better. I'm still using it. The swelling has gone down tremendously, there's only a tiny bit left. The pain is virtually gone, but it's still a bit red. I'm not sure if the infection has 100% cleared since it still is a tiny bit swollen and red or if this could just be my wisdom tooth trying to come through. I called yesterday to get my dentist's opinion and as usual, no one ever called me back. I'll be trying them again today, but was wondering if it sounds like it's gone to you? I have a consultation on Tuesday with an Oral Surgeon to get them extracted and was wondering if I needed to be put on antibiotics before the procedure just to be sure?