I'd call your dentist. With DS I had a cavity and wasn't going to have it filled because of the Novocain. My OB actually said it's a bigger health risk for the baby not to have it filled. She had a prepared note for my dentist saying what was ok.
Why can't you take medicine now that you are pregnant? Tylenol is okay, and if you have an actual problem there is medicine you can take. I would go to the dentist, since an infection in your tooth could be very dangerous for the baby.
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Re: toothache
Tylenol, if that doesn't work urgent care can hook you up with something stronger (probably T3).
Tomorrow, you need to see a dentist. You probably need antibiotics and to have the tooth treated.
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