I had a weekend of misery when my first wisdom tooth got infected (or the area around it, it's all a haze now). Personally 3 advil made the pain nonexistent for me. 2 did nothing, it had to be 3. But in trying to put it off at first, it just got worse. My gum ended up swelling into my cheek, not pleasant!
The cost of all that stuff definitely sucks but hopefully you can find a payment plan or something.
You might want to check into your regular health insurance too. They are all different but you never know. I had to pay for most of the dentist out of pocket, but got referred to an oral surgeon and health insurance kicked in for nearly all of that.