I had a sinus lift done in November 2008 (9 months ago) to prepare for implants to be placed. Ever since the lift surgery, I have had a swelling on the gum tissue where the surgery took place. The swelling extends about 2-3 inches along the gum and a little on the cheek side. It hurts quite a bit. The pain extends to my eye socket and I have frequent nose bleeding on the opposite side. I had a CT scan and a bone scan but the surgeon said ithey look okay and I should continue to give it time to heal. I'm concerned there is an infection in there that's not being addressed. Is there any other diagnostic test to determine if there's a problem such as an abscess? I do run frequent low grade fevers, have chills and night sweats.