Pregnancy, dental, infections

OK so I'm 20 weeks, I've been going to the dentist for the past few weeks. My first appointment they did some fillings. I still have my bottom wisdom teeth they said the one got impacted. Gave my antibiotics and a prescription for Tylenol 3. I have one more day left of the antibiotic and in the past 2 weeks went through 28 Tylenol 3. I have no relief at all and the pain has gotten worse. Also I got a yeast infection from the antibiotics. It literally feels like my jaw is being ripped out. It hurts to eat and talk! The dentist won't do anything more for me expect keep prescribing me the Tylenol 3. There is now white spots and red spots with white and and yellow spots in the center. Can someone please give me some advice on what to do. I've tried everything! Should I call my ob? Idk what else to do and this pain is unbearable!!