Sounds like a abscess and you will need a Rx to get rid of it. You could wake up tomorrow and find half your face swollen and end up in so pretty bad pain. Also, remember a abscess is an infection and it, being in your mouth, is close to your brain! If you have a dentist, call him, tell him you have a abscess and have to go out of town and see if he will call you in a RX, and while you are on the phone, set up that appointment to have it taken care of when you return home.