Sulfamethoxazole-Trimethoprim DS and ear infection

I went to doctor because I thought I had an ear infection. He looked at me and said I have a little fluid in my ear. He prescribed Amox. Didn't work. I then went back and he prescribed Sulfameth. I began taking two pills a day for a probable sinus infection (never had one before Im 41 yrs. old). I immediately felt like my world was crashing down on me. Im am dizzy all day, my glands are swollen and have dry mouth. I cant sleep and have nausea which is probably why Im depressed. I however continue to take this medication hoping that it will eventually work. Im on day five and feel terrible. Today I go for a CT scan of my nasal area. Pray, Ive never been so miserable in my life!

I started taking this drug on 1/14/09. On 1/21/09, I started breaking out in hives. By 10pm that night, I felt like I had rolled around in attic insulation. It felt like I had tiny pins and needles sticking me everywhere! ... it was awful!! - I was given this drug to treat an ear infection. I'm now on prednisone (50 mg for several days, and then tapering off). I'm now wondering if my ENT doctor is a goof?