Hi, thanks for writing to HCM.
Generally, Headache is not a known complication of intraarticular steroid injection. Propably, it could be attributed to an allergic reaction
that you have towards steroids. These sort of reactions may be self limiting. Symptomatic treatment involves taking Acetaminophen
may relieve pain caused by osteoarthritis
for a short amount of time (weeks to months). Some people get long-term relief of 6 months or more with a single cortisone
Usually the benefits of the medicine are more important than any minor side effects. Side effects may go away after you take the medicine for a while. If side effects still bother you, consult your treating physician.
Hope this information is helpful. Good day