I just recently had 2 root canals done for an abscess in the very front of my upper jaw. I'm currently taking clindamycin for the infection. But there's a large bump in the very center of the roof of my mouth, on what I think is called the hard pallet. It's about the size of a fingernail on a pinky. It's fairly hard, I can manipulate it a bit with my tongue. There's a lot of pain when I push on it, and when I swallow, as that's where I put my tongue in order to swallow. So this is making it pretty difficult for me to eat. The dentist I saw told me that it would decrease in size while using the anti biotics, but instead it seems to have only grown slightly.