I have strep throat, and I'm allergic to penicillin. I have Erythromycin but every time I take it I throw up, I can't seem to keep it down. I tried eating a banana before taking it to see if that might help but I ended up still vomiting. Is there anything I can do to help with the nausea? I need to keep these pills down or I'll never get any better. Thanks so much, I really need the help.