Ten days ago, I had a canal on tooth #12. The procedure went well until five days later, I noticed a lump on the around that tooth. It hurt when touched. As days went by, I got more radiating pain. I went to the dentist two days ago to have it checked. He drilled on my tooth to check if there is a missed canal. He said he found nothing wrong. Up to this day, the pain is still there. The lump has gotten larger and my face had started to swell as well. I was put on antibiotics for a week. What should I do to deal with the pain? It seems getting worse each day. Please help. Thank so much.