Hi and welcome

From your medications you list 480mg of Verapamil (240mg x2 per day) and 240mg of Apo-Verap (120 x2 per day). Apo-verap looks to be verapamil, so you're on quite a high dose of this. Most people respond to 360-480mg a day, although some go as high as 1000mg to get relief. So it appears that you've just been started on a high dose. Hopefully this will give you relief, although it'll take 10 days or so to take effect.

For the "Complex Cortisone pill treatment" can you explain more about what this is. Typically when someone starts with CH and they are on a preventive, like verapamil, that takes a while to become effective they are given a prednisione taper dose, starting high, say 80mg, and then it tapers off to nothing over about 7-10 days. The intention is to give preventive relief in the short term.

For imitrex you have the injections (which is good), although the "When pain is unbearable" comment implies that you're not taking them at the onset of the CH but sometime later. Imitrex works most effectively when taken as close to the onset of the CH as possible, so this waiting will result in the imitrex not being as effective as it can be.

For oxygen hopefully you've been set up with a non-rebreather mask (one with a bag) and a high flow rate, at least 15lpm, with higher being better, with the oxygen delivered from oxygen cylinders, not an oxygen generator. Using 25lpm I can kill off my CHs in 5 minutes or less. Again it is essential to start on the oxygen as soon as you can after the CH starts.

Read more about using oxygen at - Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to or

I assume the melatonin is for taking at night to prevent overnight CHs. Quite a few people have had success with that approach, although people did find differences between brands and some needed higher doses.

Tell us more about your CHs and also post where you're from as people will be able to give you targetted local advice.

Keep reading and asking questions.