Let's take a minute to talk about your medication. 

This is clindamycin, and you should take it as directed by your doctor. You should take each dose with a full glass of water so it won't hurt your throat. If you are allergic to aspirin, tell your doctor before taking this medicine. 

Clindamycin is an antibiotic that treats infections caused by bacteria. But, it won't work on infections caused by viruses, like the common cold. People usually tolerate it well and start feeling better soon. However, you should finish the full course, or the infection could return and become hard to treat. 

Some side effects can happen, like mild diarrhea that lasts until the treatment is finished. But if diarrhea is severe or doesn't go away, you should call your doctor promptly. You should also call right away if your stools ever become watery and bloody, even if it has been two or more months since the last dose. 

In rare cases, serious side effects can occur. With clindamycin, these can include a skin rash, blisters, or stomach pain. You should read the Patient Information Sheet to know what symptoms to watch for and when to report them. 

Women should talk to their doctor before becoming pregnant or breast feeding while taking this medicine.

Lastly, antibiotics can sometimes cause a type of infection in the mouth called thrush, so call your doctor if you notice white patches inside your mouth or problems swallowing. 
Women should also watch for a possible vaginal yeast infection. If this occurs, you should seek treatment. 

For best results, don't skip doses, and let your doctor know if your infection gets worse or doesn't improve.