Post LP Headache: Post lumbar puncture/spinal tap headaches last until the tiny hole in the dura seals. This can be years but is usually a day or 3. Typically, the cure is to lay flat for 24 hours to keep the pressure low and allow the tiny hole in the dura to heal which it almost always does. Lots of caffeine is helpful too. You may want to call your dr and ask about a blood patch.
Answered 5/28/2014
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