What treats headaches?

Depends on cause: Need to know if it is migraine, tension, intracranial pressure, arteritis, hydrocephalus. If migraine, meds to prevent headaches can be employed, and triptans can stop a headache if take in time. Check with your doctor, as likely all can be readily addressed.

Vague: Treatment for headaches varies based on type of headache, location, duration, cause and age of the person. It varies from person to person even with exactly the same symptoms. See a doctor for a thorough history and exam.