Headaches are a very common symptom among modern people, but treatment approaches vary greatly depending on the cause and pattern. In Korean medicine, headaches are broadly classified into external contraction (外感), caused by external pathogens, and internal injury (內傷), caused by declining organ function and internal imbalance.
A headache that is sudden and unusually severe, or is accompanied by speech difficulty, limb paralysis, vision problems, or fever, may be a sign of a cerebrovascular condition (cerebral hemorrhage, stroke) or meningitis, and requires immediate evaluation at an emergency room or specialized medical facility.
Hamsoa Family Clinic Headache Program

