What's HAP?
I got through dental abcess & the attending root canal with a simple exercise.
Step 1. Un-cap a bottle of Smirnoff 100 proof.
Step 2. Apply liberally to the affected area.
Step 3. Spit out or swallow depending on how you feel at the moment.
Step 4. Go to step one
I'm not kiddin' either. Codine didn't do the trick.
At work they won't let me have vodka, btw

so I soaked it liberally in blue Listerine (only about 42 proof, so you gotta use more & you can't swallow it.)