Is it that your doc doesn't know you have CH, or that he knows that you have CH but keeps endorsing/prescribing migraine meds? Has he prescribed oxygen? Has he prescribed Imitrex, or verapamil, or one of the new CGRP meds (such as Emgality, Aimovig, or others), all of which are also treatments for CH?
What are you doing beyond pharma meds? D3 regimen? Busting?
Most CH patients, as has been suggested, have very little need for doctors. If you can get an oxygen prescription, that's good, but you don't need it to have an O2 system. A prescription for an injected or nasal triptan can be very good to have, but those are also migraine meds. And I think everyone probably ought to try one of the CGRP meds (also essentially migraine meds, with boosted dosage for CH), but others disagree with me about that. Beyond those things (and maybe a course of prednisone to interrupt a cycle), the OTC D3 regimen is much better (more effective; fewer side effects) for most people than verapamil as a preventive; the D3-related anti-inflammatory practices (including the "Full Monty") can often stop a cycle; the best abortive, oxygen, can be set up without a prescription, as I've said; and busting is great if you are open to it.