The University of Michigan teaches you how to use nasal irrigation to get rid of common nasal sinus symptoms without reaching for those over the counter medications. The best part of nasal irrigation is that it handles conditions that medication cannot - such as post nasal drip and the common "stuffy nose". This can work for most allergies, even if you are already on medication. Water used for nasal irrigation should be luke warm and should contain about a quarter teaspoon of salt into an 8 ounce squeeze bottle. Squirt four ounces into each nostril. You should irrigate either in a shower or over the sink in order to minimize any unwanted mess. This is a great and low cost method to get rid of that constant nasal irritation.