How effective is feverfew for headache treatment?

Not all headaches require medical attention, and respond with simple analgesia (painkillers) such as paracetamol/acetaminophen or members of the NSAID class (such as aspirin/acetylsalicylic acid or ibuprofen). By far the most effective and rapid treatment protocol for the common tension headache is to lower body temperature. This can most easily be achieved by taking a lukewarm or cool shower until the headache is relieved.