Its been six months since I had my front top tooth removed. I have been wearing a partial clip on like tooth that my dentist made . The begining of this week I have felt massive pain in my jaws.Massive migraines and pressure. Almost like an over clinched feeling even when open. Friday night after brushing and mouthwash I noticed it was irrated looking. I touched the top of the gums where the tooth would have been and pus shot out at the extraction site. I have been having severe migraines, along with the overly clinched feeling. When the pus was finished the pressure on that part of the gum was gone, but it keeps coming back and swelling and pus will drain when touched or pushed on. What should I do, and what could this be?