Six years ago, at the age of 66, I contracted Cluster Headaches. CH come primarily in two forms, episodic and chronic. Mine are chronic, which means I get them year round. I would usually have 4-5 CH per month except when a cardiologist decided to change my meds. For the following 5-6 months, I suffered through between 12 and 18 CH per month, even after going back to my standard preventative medications, which is Lithium Carbonate and Verapamil. My most effective medication for treating them was a combination of Migranal and O2. about a year ago, my CH doctor added an Ergotomine cream which is applied to the back of my neck. I can provide much more information but for here, I want to keep this readable.
Eighteen months ago, I started keeping a log of what/when/intensity/duration/medication. This log has been extremely important in reviewing my ongoing episodes. I was getting to the point that I was afraid to go to sleep because I knew what was coming. (There is a good reason why the headaches are called "Suicide Headaches".
It's too early yet to know for sure how this is working, but on June 12, 2017, my wife started using aroma therapy with essential oils, Purification, Thieves, Lavender, Peppermint, almost around the clock, including nighttime. Since that date, I have been completely free of Cluster Headaches. Since the onset, the longest I have gone without a CH is about four weeks until now.
Just my $.02. I hope this works and I hope it helps.