my dentist prescribed clindamycin, 150 mg, 4 times a day for dental pain--in case the pain I'm having under bridgework is an infection. He also prescribed methylprednisolone 4 mg dosepack. I started taking both yesterday. I have nausea (and vomited once) today, and now have developed a red hot face. Is this from the clindamycin? Should I discontinue taking it? Unfortunately, I just took another dose. I hope it doesn't get worse now overnight. I'm also extremely allergic to penicillin--anaphalaxis develops. What should I do? Do I need to worry about this red face?