Is a 3 day headache after an EEG normal?

A headache lasting for 3 days after an EEG (electroencephalogram) is not a common adverse reaction associated with the procedure. An EEG is a safe and non-invasive diagnostic test used to measure the electrical activity of the brain. While some individuals may experience temporary discomfort, such as a mild headache, associated with the placement of the electrodes on the scalp, these symptoms usually resolve within a short time frame. If you have persistent headaches or experience any other concerning side effects following an EEG, it's advisable to consult with your doctor or the medical professional who performed the test for further evaluation.