OK, the pennicillin reduced the swelling in the floor of my mouth but didn't do much else, the lump is still there and there is actually a second larger one forming below. I went to my oral surgeon and he immediately went through a light cancer screening. Felt lymph nodes, no swelling. Xrayed the floor of my mouth, nothing. He said that i probably have either a cyst or a blockage of a minor salivary gland, but that it's not much to worry about. He told me to rinse with saltwater four times a day for a month and come back in february. If the lump is still there he will remove it and send them in for biopsy. I'm still worried and the pain in my mouth is very irritating, but since my lymph nodes checked out fine and there are no, as he put it, calcifications in the floor of my mouth, i feel a bit better. I'm assuming at worst this is a very small cancer that I caught very early, and at best it's just a benign problem. Really hoping it's benign though.