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Irrigating the sinuses with a salt water solution is often recommended for sinusitis and allergies, in order to clear the nasal passages of mucus. Another solution for nasal lavage (washing) utilizes powdered goldenseal (Hydrastis canadensis ).
First of all, buffering your solution with sodium bicarbonate isn't strictly necessary although some people believe it makes the solution more pleasant to use. The amount of baking soda (sodium bicarbonate) people use seems to vary, but as long as you don't have more baking soda than salt I think you should be fine.
Baking soda is a salt...sodium bicarbonate
Either baking soda or soap is salt.
Baking powder and salt.
salt
Rising salt in the soil
You could try doing your own mix of: * 1/4 tsp table salt * 8 ounces warm water (filtered is best) * 1/8 tsp baking sod Or, you could just get the official stuff with Xylitol (tons of benefits of using Xylitol). A $6 bottle like this will last you through at least two years of colds. I think they also have a Nasal Wash product too. <a href="http://www.xlear.com/nasal-spray.aspx">www.xlear.com</a> http://xlear.com/netixlear-nasal-wash.aspx
baking soda dissolves faster than sugar and salt.
A one percent saline solution (roughly isotonic) can be made by adding 1 teaspoon of salt to a litre of drinking water. The salt should not contain added iodine or anti-caking agents. Which means that kosher or pickling salt are appropriate but table salt isn't. The saline should be heated to a luke warm temperature before use.
high salt content prevents plants from absorbing the water
If you put salt in warm or cold water it dissolves better and faster than baking soda.