Responding to Sheree's post from 2010 in the baking soda section for nasal obstruction -
Please try snorting some Apple Cider Vinegar. I used to have very bad sinus attacks. I used to use a sheet to keep on blowing my nose then it would become blocked. It finally went away on its own then about 1 year ago it hit me like gangbusters again after more then 30 years. I didn't know what to do so I put 3 drops of ACV in the palm of my hand and mixed it with water, I snorted it up my nose and after a few minutes my nose became unblocked. It burned a little but I felt great. Even the pains in my body went away. Hope this helps you. Please take care.