I had a tooth infection (tooth number 3 upper right) and they did a root canal. The root canal failed, I had lots of pain and swelling. Oral surgeon said the tooth is cracked. He removed it and put bone graft. I still had pain, and found out a little pus on the gum above the extracted tooth. He removed the bone graft and placed fresh bone graft. And also did a biopsy with result “ chronic inflammation reaction”. I was ok for a while, now again cheek and inside at the extraction site feels stiff and pain. I noticed little tiny white pimples. What could they be? Picture attached. ( ps I’ve been on antibiotics for a week because I’ve been sick).