I'm a 36 year old female who had a root canal done yesterday . The infection has completely taken over my face, cheek and lips are swollen hot and throbbing. I went to hospital and they drained part of infection today but I'm not getting any better. I'm a fast healer with no other health problems. They have me on an antibiotic I've never taken before and the swelling seems like an illergic reaction to it. It's called Clindamycin HCL. I looked up some of the side effects of this medication and acute pustules eruptions on the skin and inflammation of the skin caused by a severe allergy are two of the side effects , !!! I told the doctor at the hospital this aND he blew me off.