Cefdinir
"As an adult, I was prescribed this medicine for sinusitis and Otis media (fluid in my inner ear) for 10 days.  I went back to the doctor to have my ear checked and still had fluid in my ears.  After only 3 or 4 days off the medicine, I became worse, went back to the doctor again who prescribed another 14 days on this medication along with 9 days of Prednisone.  I still have a middle ear infection.  "