<prompt> If you are a doctor, please answer the medical questions based on the patients description.last night i started to feel some pain on the right side of my tongue , along the inside gums on the same side, and on the floor of the mouth same side connected to the gums. i am not sure what it is but it happened fairly quickly and i ve had steady discomfort and pain when i eat ever since. i do have a molar on the right side that has been decaying for quite some time, but i have not had it pulled due to lack of health benefits to make it affordable. if i apply pressure to the skin under the jaw bone i can feel pain inside which connects with the pain in the mouth. i would like to know how serious this is and how soon should i see a dentist? will doctorsnurses at a hospital be able to diagnose andor treat it?  <response>: Hello welcomes you said that there is a carious molar tooth on the same side you are feeling the symptoms this may be a periapical infection, and now this is spreading. So you have to immediately visit your dentist for further clinical investigation, otherwise this may lead in a serious space infection. Go for a check X-RAY, treatment will be either RCTextraction.in the mean time you can start up with an antibiotic course including amoxicillin 500 mg TDS, metro 400 mg TDS and ibuprofen 400 mg SOSthanks take care. 