First, I reccomend Zyrtec, it's considered the best medication (that isn't prescription) for hives. Ketotifen is available in EVERY country other than the US, and it's even better than Zyrtec but you need a prescription for it! So you may want to ask your doc about those two. Benadryl isn't an option for me, as I'm allergic to it.

Second, you have PTC/IH like me. My pressure came back high, and since the LP, I've stopped having a lot of random hive breakouts. (I have histamine intolerance, along with angioedema...) If your pressure is up, you could be breaking out in hives due to that. Stress makes the body release more histamine... So, if your intracranial pressure is up, THAT can be adding to this too.

Third...It could be the clusters doing it, too, if you already have allergies. As I said....stress makes the body create / release more histamine from what I've been told by a crapload of doctors.

Basically it's a nasty cycle. When I have a severe hit, I tend to break out in hives, if it lasts for very long.

Hopefully you'll get some relief soon.

PFDAN (And itch-free day and nights~)
Mystina

I just wanted to say "AMEN" to the comment about cluster headaches and world peace. That'd do it! PF wishes!