It is saline solution—salt water—which you will make yourself, and administer to yourself in the most effective manner, and soon you will be breathing free, with sinuses as clear as you can remember. Perhaps, you may be smelling
things that you haven’t smelled for quite some time. They may be fragrances that you miss, and some of them may be dreadful funks you wish you’d never experienced. If this technique does not work, then at least you can narrow down the real cause of your sinus problem.