Cefdinir
"I was given this after I returned from a trip to Texas.  Double ear infection and strep.  After 4 days on this med, my tongue feels like it's numb, my throat feels like there is a giant lump in there.  My ears are ringing nonstop and there is still fluid in there.  My heart races for the first hour after taking this, I'm dizzy and for some odd reason my feet sweat like crazy ( I have never had sweaty feet, ever).  I called the Dr's office today and they will get back to me."