Pineapple juice really works. Your toothache will be gone in no time. When you first take it, you can think, is it really working, but it is. Your toothache won't come back either. Just keep taking it for a few weeks and your tooth will be fine (it only takes a day for the toothache to go). I used tinned pineapple in its own juice, I don't know if the pineapple juice in cartons works as well.