the anti-inflammatory vitamin D3 regimen has worked very well for people with chronic and episodic CH (https://clusterbusters.org/forums/topic/1308-d3-regimen/), and "busting" (using psychedelics), when done properly (not with microdoses and generally five days apart, not three or four), has also benefitted many to prevent cycles/attacks and provide an end to episodic cycles or remission from chronic attacks. you don't mention oxygen in your posts, but it is a very effective abortive for chronic and episodic folks, and so is DMT. None of these things (D3, oxygen, or DMT) blocks busting, and there are other CH meds that don't block busting.
again -- may you never need any of this information, and may your discovery benefit many others.