Taking painkillers or Triptans too often for tension-type headaches or migraine attacks can cause a condition known as medication-induced headache. It is also known as a medication-overuse headache.
It is a common cause of headaches that occur daily, or on most days. About 1 in 50 people develop this problem at some time in their life. If you find that you are getting headaches on most days and you are regularly taking Triptans or painkillers then you should discuss this with your doctor.