Clarithromycin
"I only took this one time for an ear infection and water behind the eardrum. I took another antibiotic's k-pack that I reacted really well too and the pain in the ear was almost gone. Nevertheless, when I went back to the ENT he changed the prescription to this Clarithromycin.  It made me so nauseous, I wasn't willing to risk taking it any more.  I am not a "doctor going" person. I usually wait until my pain is really bad or I have had symptoms really long. I had water behind the eardrum and dulled hearing for 8 months before I went the first time.  This antibiotic, like all antibiotics  and medicines, work differently on different bodies because of chemistry. Great if this worked for you, but it definitely made me sick."