There will be no effect at all on the sinuses. The sinuses will be on the other side of the bone and filler will not penetrate the bone. The main risk will be intravascular injection or an asymmetric injection. Best of luck.
Gary Linkov, MD
There can be some swelling and/or lumps after lip injections which can last 1-2 weeks. You can apply firm pressure between two fingers on the lips for a few days, for 5 mins a time, in order to help decrease swelling and even out the lumps. If you're unhappy with your final results you can have...
I recommend returning to your injector for an evaluation. It appears from your photo that it may be normal bruising, but the numbness is not typical at this point. Your injector should be able to advise you.