Suggest Treatment For Sinus Problems

Question: Hello I'm having sinus issues everytime it's usually the right side but sometimes It will switch to the left within minutes I've had this for about 3 months now. it's harder to breathe sometimes out've one nostril and if i try to clear it nothing really comes out.. and there's a pressure in my sinus if I try to clear my nose and also will push to my ears and will feel like a mild pain when doing so trying to clear it out... also when I swallow water it feels like water is in my ear sometimes.I do smoke and everyime I do there's a big pressure that goes in my sinus a pressure that hurts. I find it weird though that it will switch sides is this normal? and can this be fixed... I do have tmd issues aswell.

I also went into an ent that did a scope look at everything and said everything looked normal and it wouldn't be worth getting a ct scan but that was two weeks ago and still nothing, he said that must be a underlying problem.

& sometimes for a second my passages will be clear and then one side again within a minute will be blocked this is weird.