I went through the same thing a while back and my doctor said I could take an antiemetic 1/2 hour before taking the antibiotic. That's what I did and didn't experience any nausea. As you know, it's important to get rid of the infection so please ask your doctor or pharmacist if it's okay to mix an antiemetic with whichever antibiotic you've been prescribed. Oh and I also made sure I had a little something in my stomach before taking the antibiotic. You can do this!