I have eustachian tube dysfunction. I learned about the Eustachi device from my friend Tom. While I usually have to use it a few times a session a few sessions a day, it works to help my ears drain. My Eustachi device failed after only a few uses. It would not turn on. It was one month out of warranty. Clint contacted Neil Med, the maker, and they are sending me a new one free of charge. So here is a shout-out to a company that stands by its products and treats its customers right!
I also use their sinus rinse bottles to prevent sinus infections. It is very helpful after I cut grass or work outdoors during peak allergy seasons.