My husband says everybody about this sinus rinse. You don't have a cold, you have allergies! If you have a lot of headaches, you've probably got allergies. Start using this natural sinus cleanser. It will save you thousands on allergy specialists who are trying to figure out what you are allergic to. Who cares! I was diagnosed with Acute Chronic Sinusitis. Doesn't get any worse than that and this simple product got me well and now I use it on bad days only. In the beginning, I rinsed morning and night for about three months straight. It cleaned out so much stuff in my head, blood, yellow infection mucus. All that crud just started washing out of my head. This product saved me from surgery AND I stopped the tests every week where they were checking what all I was allergic to. Didn't need to continue with that. This product saved me and made me well.