Instead of pills, inhalers, and nose sprays try nasal irrigation. It sounds weird I know but it's a throwback that has worked for decades. Basically you squirt salt water up your nose and let it leak back out. To deliver the saline solution, you can either use a teapot-like device called a neti pot (popular in India) or a water bottle with a squeeze top, a turkey baster, or a needle-less syringe. Just por some room temperature tap water with a quarter teaspoon of kosher salt into one nostril and allow the water to flow out the other. This will wash out mucus and grime, along with pollen grains and other airborne allergens you've inhaled. At first it sounds disgusting, but once you try it, you don't want to stop since it treats post-nasal drip and mucus better than anything else.