I believe I have read your question before, somewhere else. Anyway….......
I am a master with the human sinuses. Riding a police motorcycle for seven years almost did me in.
I finally had my sinuses operated on and that cured my problem. Here are some of the tried and true actions that helped me. There is a sinus mask on the market that works pretty good. It’s expensive, but this will work just as good: a hot steamy towel placed on your sinuses for 20 minutes. This helps with the pain. Also, this: to a quart of tap water, place one tablespoon of table salt and stir. Turn your head to the right and sniff in the salt water until it flows out the other opening of your nose. Expect crud to come out. Do the same for the other side of your nose. Then, with the remaining salt water, that is boiling on the oven, place a towel over the back of your neck and breathe in the steamy salt water vapors for about ten minutes. Sinuses react really good to salt water.
Also, go to WalMart and buy a bottle of Afrin Nasal Spray. It works great. two sprays up each side and you can then breathe again from your nose. Also, buy regular antihistimine and take as directed.
Finally, if all else fails, call and make an appointment with your doctor. Tell him you want a prescription for Deconamine SL. This is a slow release antihistimine combo that will work for you. It’s twelve hours of relief. Also, I believe that Dristan Nasal Mist is also a good, working product. I have used it for years.
If what comes out of your nose is green or brown, you will need antibiotics. Tell your doctor.
Good luck on your sinuses.