I had a root canal done about 3 years ago on the tooth next to front teeth.It was suppose to be temporary and I never went back in.  It got so painful a coupledays ago I sat and cried continuously. I went to the dentist yesterday and he gave me amoxicilin and norco for pain. And he said I need to go to endo- something. Which they are suppose to call me next week. So I started the meds yesterday about 5pm. Taking them exactly how they a prescribed and I woke up this morning and my top lip is swallon from side to side. It wasnt this bad yesterday. Is this normal and can the infection spread? My other teeth are now hurting also. Thank you for your time
It could be an exacerbation of an existing chronic infection. Antibiotics and pain relief meds are only transient. See your dentist for pretreatment or endodontic surgery as required.