<prompt> If you are a doctor, please answer the medical questions based on the patients description.my dentist prescribed clindamycin, 150 mg, 4 times a day for dental pain--in case the pain Im 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 doesnt get worse now overnight. Im also extremely allergic to penicillin--anaphalaxis develops. What should I do? Do I need to worry about this red face?  <response>: Thanks for your query, I have gone through your query. The nausea and omitting can be because of the gastric irritation caused by the clindamycin. The red-hot face can be because of the tooth infection or because of the allergic reaction to the clindamycin. You can take an antacid with antiemetic like rant ac a ddomperidone respectively. Later you can take antibiotics like erythromycin and metronidazole combination. I hope my answer will help you, take care. 