Just a quick FYI of something I've used for awhile with good success. After moving to the South from the North my allergies were really giving me trouble. So I started using a neti pot to avoid normal medicine. You fill it with water and a basic salt/baking soda solution then run it through both nostrils. It's been great! I brush my teeth, floss and then use the Neti pot. Allergy issues, common cold, haven't had a single issue since starting to use it.