Headache and Internal Analgesics. Headaches. Most common pain complaint 40% of US population have recurrent HA Classifications: Primary HA: 90% of HAs, not associated with underlying illness. Examples: tension, migraine, rebound. Secondary HA: symptom of an underlying condition.
(Classic) and Migraine without aura
Without aura = usually generalized
acetaminophen or caffeine.
from patient to patient