You can clean your sinuses really effectively just using warm water, salt, and something called a Neti Pot. I have done it a few times now and I have to say that it really works and feels good.
Many people suffer from some kind of nasal irritation, be it mucus, allergies, an infection, sinus pain or even snoring. While a doctor may prescribe a steroid spray that costs a ton of money and never seems to work, there is a simpler and much more effective way to help your nose and nasal cavity. It's the ancient practice of nasal irrigation - The Neti Pot!
This is not an ad, it just happens to sound like one because I am excited about pouring salt water through my nose.