What can we do to help prevent the sinus fluid draining into the hole from tubes in my ear as a kid? when my boyfriend was younger he had tubes in his ears for cronic ear infections. he was told the left ear never closed, but they never did surgery to clo

Persistent : Persistent hole in the ear drum after tubes is a common problem (up to 7%). They can be closed with surgery. Repiratory infections can lead to ear infections, but that's less common in adults. If there is a hole in the ear drum, the ear infections may be mild but show up as mucus or pus comming from the ear. He should try to keep the ear dry. If he has a hearing loss in that side, or there are other problems with the ear (drainage) he should get an evaluation by an otolaryngologist and a hearing test.

May not be a problem: You didn't say what the symptoms are, but you may not even have the tubes any more - they frequently are lost over time. Also, they are placed to prevent problems which result from excess pressure due to fluid buildup, so it shouldn't be a concern about fluid draining (it's better for it to drain than build up), unless it's from a true infection, in which case you need to seek medical attention.