Tim, probably the best place to get the answers you're seeking will be Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to or . It's a forum much like this one, and has all of the data on using hallucinogens responsibly in order to treat CH. For many, it provides complete relief over time, and in most cases, won't require you to "trip" or hallucinate. Check it out for sure.

I know this post is somewhat out of date, but I figured I would put my two cents in... Unfort. for myself Marijuana quite often triggers CH's, but then again I'm in a cycle 365 days a year. So it may be very helpful for episodic CH's. I've found if I already have a ch, ill smoke and it actually helps... But if I smoke while having no cluster its a flip of the coin. I agree with Lydia, everyone is verrrry very different when it comes to CH's... which makes it very hard to treat. So when it comes to a very safe herb like Marijuana hell give it a chance who knows!!  

ok, so, I have been having clusters since I was 18, 38 years ago, and had to post something on here as if it saves one person a single headache is worth it.
These  headaches are evil and devious, what works one season, may not work the next, verapamil worked like a charm first time I used it, didn't work after that , has to do where the cycle is and how to interrupt it. mary Jane may work for some people I say try it , try anything that may help, amitriptiline, verapamil, sumatrapin has always worked to stop the attack, but not interrupt the cycle. nasal irrigation worked 2 years for me, then stopped working, mushrooms or lsd has been studied lately as it seems to work to stop the cycle and thats really what its all about stopping the cycle.
if you have a headache that ibuprofen stops , you dont have a migraine much less a cluster, imitrex injections or nasal spray stop the attack the fastest in my opinion, but don't stop the cycle, I have tried everything there is to try, and
have to change it almost every cycle, as the same thing won't work more than two times, but the imitrex or generic sumatrapin always stops the attack.
I have stopped the cycle by changing where I was physically, taking a plane ride somewhere going into the mountains, anything that makes your ears pop may also do the trick.
avoiding the cycle, I have never found anything that works, except when I took amitritiline, for a year, skipped a year , mine always come in march or april depending on climate, may be pollen counts or something, but once started will go on and on for months sometimes till I can break it, am currently going on two months of this cycle and started amitrip again.One year , during a horrendous attack, tried the nasal irrigation and it stopped immediately, like magic. Hope this helps someone

I smoked weed for a long time but once I started getting cycles every spring summer for the last 5 years I quit.  I found it to be almost an immediate trigger for me, and they were quite painful way more than usual.

My second strongest trigger, after alcohol, is floral old woman perfumes.  They get me every single time. I think all would agree with, find YOUR triggers and stay as far away as possible.

I hope that someone can shed light on this as it seens a little unusual.

I don't smoke much pot these days as I#m out of the loop and don't have someone to buy from....but...

I won't touch it if I'm in the middle of a bout (same goes for alcohol).

When I have toked close to a cycle, I've been fine that night.  No shadows, no cluster attack.

BUT - the next day, definite continuous shadows, and the next night, a high KIP.

Anyone else has this 24 hour delay?  Can anyone explain it?