At one point someone thought rob may have a brain secondary because of his headache/jaw/earache,He actually had trigeminal neuralgia .Amitryptilline sorted it out, and also something as simple as soluble paracetomal.The doctor explained that you need different types of pain medication for different types of pain,and fentanyl wont neccessarily stop a headache which is strange really.Rob eneded up on four different pain meds all at the same time to target different issues.