my right ear

I had a doctor appointment today regarding my right ear. The doctor looked at both ears. My left ear is fine; however, my right ear has a mucus plug which is trapping liquid inside my inner ear. She said that the liquid isn't infected. (how can she tell?)

Anyway, my doctor told me to take either Sudafed or Chlor-Trimeton and that should take care of my right ear. Meanwhile, I'll just have to depend upon my left hear in order to hear people.