I have an abscess tooth and now there is a boil underneath the tooth in my gums. Thursday I went to the dentist and he drilled into the back of the tooth to allow the infection to drain, but does this mean that he didn't drill deep enough? Also, I was prescribed Clindamycin which is now giving me hives, which is the only side effect that is obvious so far. I called the office for emergency care at 11:06pm tonight but apparantly they don't take calls after 11:00pm... But I was able to leave a message for them to return my call in the morning. I'm a little worried about going to sleep with my gums swollen like this, I have heard horror stories. Any advice would be great.