Pimples under scar tissues? HELP!!!

Last June I had surgery on my tailbone to remove a baseball sized cyst. I had bumps from how the stitches had been put in. Idk how or why I noticed this... but the scar bumps that the doctor said looked and are perfectly normal now look like irritated pimples. I can't get in to see him for a few weeks. Any ideas why this happens or what I can do it'll I see him?