I became ill with an sinus infection while visiting my son. It was so severe I had to cut my vacation short and fly home. Did not have a direct flight, which meant I had 2 descents and upon each one I experienced severe pain and pressure in both ears. Went to my PCP the next day and was dx. with same and prescribed Z-pak. Also, severe bloodshot ears and nose. Finished Z-pak and now left with continual humming in my right ear for 2 weeks..will this go away? I was told it might be permanent! Should I see and ENT or refill my Z-pak? Thank you.