Headache and bright lights hurt: what to know

Light sensitivity, sometimes called photophobia, can occur with a migraine and may come with nausea, visual changes, or a pulsing or one-sided pain. Long screen use, glare, tiredness, and an uncorrected vision problem can also make light feel harsh. A viral illness, sinus symptoms, heat exposure, or not drinking enough can contribute to headache. The symptom alone cannot identify one cause.

Notice whether the pain began suddenly, whether light makes it worse, and whether you have fever, neck stiffness, vomiting, weakness, confusion, or a new change in vision.

Rest in a quiet, dim room and reduce screen brightness. Sip fluids, eat a small meal if you have missed food, and use a cool cloth if that is soothing. Avoid driving while vision is altered or pain is distracting. Take only a pain medicine that is suitable for you and follow its label; ask a pharmacist if you have pregnancy, kidney, stomach, or medicine concerns.

Seek emergency help for a sudden, unusually severe headache, fainting, confusion, seizure, new weakness, trouble speaking, repeated vomiting, a stiff neck with fever, or sudden loss of vision. Arrange prompt medical review if this is a first or changing pattern, follows a head injury, or does not settle with rest and hydration.

Ask what pattern your symptoms suggest, whether your eyes or medicines could contribute, and which warning signs should change your plan. Bring a brief record of timing, triggers, associated symptoms, and anything you took.