Anyone done this??

My doctor put me on a 10 day set of antibiotics about 2 Sundays ago. I took them for 3 days and had to stop because they made me so neausous I couldn't keep anything down and was so suck to my stomach I felt like I had the flu. I just called to talk to my doctor about getting a different kind so I'm not so sick. My antibiotics is to treat a staph infection is what my doc told me. She didn't test me for a staph infection though. I just told her where my boils are and she said it's a staph infection. Has anyone had to switch antibiotics before? My doc wasn't in the office today so they handed it to her nurse to handle for now. Is it even possible to switch antibiotics?