Sinus perforation after Dental Implants: how to treat this?

I have done a molar implant on my left upper side about 2 weeks ago and here is the problem: a day after the surgery I got the flu and 2 days later I started to feel a really foul smell in my sinus above the tooth implant. When I consulted my dentist he told me not worry about it but to keep taking the anti-biotic that I was taking (2 grams of Augmentine) and it should heal soon. The anti-biotic course finished and the smell is the same so I consulted an ENT doctor and he told me that I have sinus infection and I need to take more anti-biotic. My question is this; if the implant has perforated my sinus cavity then and it is causing this infection then what is the solution? how can this be repaired?

Featured Products

OsteoGen Bone Grafting Plug
Combines bone graft with a collagen plug to yield the easiest and most affordable way to clinically deliver bone graft for socket preservation.
CevOss Bovine Bone Graft
Make the switch to a better xenograft! High volume of interconnected pores promotes new bone. Substantially equivalent to BioOss and NuOss.