I recently saw a 32-year-old woman who never suffered from headaches until a year ago when she was given an injection of a COVID vaccine (J&J). Her headache started the day after vaccination and it has persisted unabated. Besides severe daily headaches, she developed profound fatigue, muscle aches, and brain fog, making her unable to work. Her headaches had all the features of chronic migraines and I recommended trying Botox injections along with a migraine medication that she has not yet tried.
I’ve seen a few dozen patients who developed less devastating headaches or whose preexisting migraines worsened after vaccination. Some developed a headache after the first or second shot and a few had it only after the booster. I am not suggesting that people should avoid the COVID vaccine. I’ve had three shots myself. I am writing about this because of a study just published by European researchers in the Journal of Headache and Pain – “Headache onset after vaccination against SARS-CoV-2: a systematic literature review and meta-analysis.”
They examined the results of 84 scientific reports that included 1.57 million participants, 94% of whom received Pfizer or Oxford-AstraZeneca vaccines. They discovered that vaccines were associated with a doubling of the risk of developing a headache within 7 days from the injection compared to people who received a placebo injection. They did not find a difference between the two different vaccine types. Some people developed a headache within the first 24 hours. In approximately one-third of the cases, headache had migraine-like features with pulsating quality, phonophobia, and photophobia. In 40 to 60% the headache was aggravated by physical activity, which is another migraine feature.
The majority of patients used some medication to treat their headaches. People reported that the most effective drug was aspirin, although the details about various treatments were not provided. We do know that in Europe doctors are much less likely to prescribe medications, including triptans. It is likely that early and aggressive treatment can prevent these headaches from becoming chronic and disabling.
