I work full time as a teacher. Since you seem to have tried out everything, I wonder if you could advise me on a quick and convenient cure when I am in school. I am hesitant to take drugs and would prefer something like a nasal spray that is convenient to use and offers quick relief.
As you are aware there are 4 pairs of sinus cavities which open into the nasal passage. Infection can cause the sinuses to swell. This in turn can lead to the blocking of the opening of the sinuses. As a result, mucus can start collecting in the sinuses. This build-up of mucus leads to pressure on the sinus walls and this causes pain. Also Bacterias love mucus, since it helps them thrive.
To get quick relief, the mucus in the nose should be cleared. Since you work, a nasal spray is far more practical than a neti pot.
There are different types of nasal sprays in the market - with drugs/without drugs, with different content....... Based on your preference and medical condition, you may want to select an appropriate nasal spray.