"* For sinus infections, try nasal rinses. Dissolve 1/2 teaspoon of salt in a cup of lukewarm water. Inhale some of the solution about one inch up into your nose, one nostril at a time. Do this either by using a baby nose bulb or an eyedropper while lying down, or by sniffing the solution out of the palm of your hand while standing by a sink. Then gently blow your nose, being careful not to hurt your ears. Repeat the same process with the other nostril. Continue to repeat with each nostril until the nose is clear. Rinse your nasal passages at least twice a day until the infection improves. Each rinsing will wash away about 90% of the infection and make it much easier for your body to heal."
90%? Really? Dubious.
I don't believe the Neti pot technique either. Typically, if you have an infection, at least one of the nostrils will be shut down, closed off. Nothing comes through. At least this is true with me.