Headaches can occur due to stress, hunger, dehydration, exhaustion, muscle or joint problems. In short, we all face nasty headaches from time to time and taking too many painkillers can be worrisome. Why use a roller applicator? Trying to get therapeutic effects from aromatherapy through the sense of smell alone is not as effective as applying the oils directly to your skin and letting your body absorb them. This blend combined with the proper application allows to decrease pain and severity of the headache.