I had all wisdom teeth removed. My face is round when it used to be square. Would a cosmetic surgeon or dentist be best option?

In 35 years I have never seen a problem eating with 2 molars instead of 3. Yes you will be able to chew properly.

Some slight pain and redness might be normal 1 week later, but I would advise you to call the Oral Surgeon and have him take a quick look.

The symptoms you have told are not of any infection. They are signs of proper healing wound. The socket does take some time to heal up after the tooth removal. Although there is no major pain after 3-4 days in most cases, you may take about 2 weeks to start feeling absolutely normal on that side...