That sounds like the mixture my doc gave me years ago, but you mix it up, then use a squeeze bulb (like the kind you use for clearing a baby's nose) to irrigate the sinuses. I did that for years, until my last squeeze bulb was too badly cracked and I couldn't find a replacement. My doctor recommended that I talk to the pharmacist in the facility, and they recommended the one with the Indian-looking (south Asian, not 'Murican) doctor on the box whose name I forget. It came with a squeeze bottle and the little packets of salt and soda, which makes it simple. Just pour the contents of the packet into the bottle, fill to the line with distilled water, nuke it for about 20 seconds, then squeeze it up into your sinuses.Recipe: for Saline Nasal Rinse. I got this off WebMD and it is as good as the stuff you buy in packets and a heck of a lot cheaper! It works great using a Neti Pot.
8 oz distilled or sterile water
3 tspns kosher salt (non-iodized)
1 tspn baking soda
Mix it all up; put 1 level tspn in the Neti Pot, fill with room temp or lukewarm water. Lean over sink, tilt head, and flush schnozz out good, letting the snotallergunk run out of the opposite nostril. Be sure to rinse innards on both sides of schnozz.
I always do that after I've been doing any work on a tractor. Between the dirt and exhaust, it's amazing how much stuff gets flushed out afterwards...