Cluster headaches arguably cause the worst imaginable pain, hence the moniker, suicide headaches. Fortunately, there are many treatments for this condition, including two FDA-approved drugs. One is sumatriptan injections taken as needed to stop an attack. The other is a preventive monthly injection of galcanezumab (Emgality). We also use Botox injections, oxygen and a variety of medications. Nevertheless, some people do not respond to these treatments.
A report by Japanese neurologists from Tokyo suggests a new treatment. One theory of the origin of cluster headaches is the reactivation of the varicella-zoster virus that causes chickenpox and shingles.
The study included over 160 patients with episodic cluster headaches who received a shingles vaccine. The response to the vaccine was measured by the amount of antibodies in the blood. Those patients who had more antibodies had a longer delay to the next cluster episode than those with low antibody counts. They also found that those who had a COVID infection and received multiple COVID vaccines, tended to do worse.
It is premature to recommend shingles vaccine to patients with cluster headaches unless they are over 50, the age when everyone is advised to get it.
