Screw sinus issues!

I am in need of some help. I have felt with sinus issues since I was a teenager and it sucks. If anyone out there has any remedies that help sinuses/allergies I am all ears. At this point I would try anything. I currently write this blog laying on my couch with two pieces of tissue stuck in each nostril (so picture that). If I don’t sit like this my nose will run and I’m constantly sneezing. So please fire away with any helpful ideas! Oh and also to top it all off I have a dentist appointment in an hour so let’s hope they don’t get a face full of sneeze while I’m there. FML (facepalm)