Hi, I hope I am not right, but it sounds like maybe an abcess which is not fun, First off I would try your dentist again and see if they can get you in on an emergency basis if the pain is really really bad. Second dont use heat, hot compresses, I did this with an abcess, (my first ever) and I ended up in the hospital!! Heat will allow the infection to grow, they love it!!! I actually pulled the infection into my face and I was pregnant at the time and noone knew what to do with me!!!. Use cold/ice compresses and if you can handle holding ice water in your mouth (spit it out when it gets warm)(drinking to much water can throw off your electrolytes!) ice/cold will help shrink infection and take the presseur off. On a med note you can combine tylenol and advil and take them at the same time as long as you do not exceede more then the reccommended dosage of either. Regular tylenol can be taken every 4 hours and extra strength can be taken every 6 hours. Advil can be taken every 6 hours so if you stick with extra strengt tylenol you can keep your self on an every six hour dosage of both. You could also ask you dentist for pain meds, they should be able to give you something stronger to hold you over if they are not able to get you in soon. I hope I am wrong about it being an abcess and it is just something minor and Ihope the advice I have given helps in any way. Let me know how it goes!!! Good luck, hope you feel better soon. L.