Has anyone tried a product called The EarPopper. It is supposed to help clear ear fluid and help ears pop. You put the machine up your nose and it produces a suction/air which helps clear ears. I don't know if it is safe.
https://www.amazon.com/EarPopper-Home-Version-Summit-Medical/dp/B01MU03MER/
https://www.amazon.com/EarPopper-Home-Version-Summit-Medical/dp/B01MU03MER/