A patient reports recurrent episodes of localized, throbbing pain below the right eye with photophobia, lasting several hours. Which condition is most likely?

Recurrent, throbbing, hours-long unilateral pain with photophobia is characteristic of migraine, which involves activation of trigeminal C-fibers.Other options: Maxillary sinusitis causes pressure pain worse on bending forward with nasal symptoms; acute glaucoma causes a red painful eye with visual halos; trigeminal neuralgia causes brief, lightning-like shocks, not hours-long throbbing.Key exam takeaway: Recurrent throbbing unilateral pain with photophobia lasting hours = migraine.