Yes, My Husband Has Clog Ears From Having A Cold.

Yes, my husband has clog ears from having a cold. We went to the dr and he gave him ears drops and antibotic. We just went yesterday and it doesn't seem to be working . He is having a hard time hearing. He is a veteran and it takes a long time to get an appointment. I just heard this advertisement for Eustachi. And I am wondering if this really works to unclog his ears.,he is going away Thursday on a plane and I am afraid that it will become painful for him. Any suggestions?