Can eye filler cause sinus issues? The doctors here are always saying no, but too many of us are having the same issue.

Hello,
It would be difficult to imagine how dermal filler injected under the eyes entered into any sinus cavity, so we do not believe that this occurred. However, it is more likely that the filler placed under the eyes may be blocking the tear duct and creating persistent puffiness in these delicate areas. The best and most direct way to determine if this is an issue of filler is to have your injector dissolve the filler to see if this improves your situation.
Regards.

However, the same sensory nerves that supply the skin of that area are also responsible for the sensations we associate with sinus congestion. There are individuals who get a midface filler treatment that is over done and complain of a sinus congestion sensation. Removing this filler and doing a lighter treatment is the answer.

I'm sorry to hear of the issues you are experiencing. Fillers properly placed under the eyes should not have any impact positive or negative on sinus issues. If the filler is still present you can elect to have it dissolved with hyaluronidase. Always choose an experienced injector for treatment.