bacterial infection
"I started Clindamycin on March 25 for sinus infection - 150 mg, 3x a day for 21 days. This is the first time I have taken this medication. This past Friday, I thought I was having a heart attack. I knew it was this medicine giving me awful heartburn/chest pain because I could 'taste' the medicine. The heartburn and awful taste are almost unbearable. I will try drinking more water and do probiotics/yogurt. I am thankful that, so far, I have not had any upset stomach or diarrhea. Thanks for the tips."