My right side of face is swallow, what can I do for the pain?

You mean swollen. Sounds like something going on inside your mouth. Possibly with an impacted tooth. Can you chew on that side of your mouth, or does it hurt to put pressure on that side of your mouth. If so, then you had better get to a dentist because there is pressure building up under a tooth from infection.

It sounds like you need an antibiotic and not just a pain killer. You could try Advil for the pain but as tickle said, get to a dentist as soon as you can.