Massive headache

I've got a huge headache, bad enough that I'm thinking of taking some painkillers. I don't usually do that because they have a rebound effect. I might feel better now but then later I'll get a rebound headache from taking the pills so I'll take some more, which will give me another rebound headache. I actually get significantly fewer headaches since I stopped taking medication for pain, but sometimes when it's very bad I have to take something.

When I say painkillers I'm including stuff like tylenol and ibuprofen. When I was first diagnosed with Pseudotumor Cerebri I was taking tylenol two or three times a day and had some liver damage. Once I stopped taking it I felt much better.