Question

A 47yo man is being evaluated for a headaches that he describes as “someone jabbing my brain through my eye”. He reports these headaches occur several times a day for the past several weeks, lasting only for a minute, and only affecting his right side of this head. While speaking with him, he has another episode and you notice his eye becomes red and injected with significant tearing and nasal drainage present. On closer examination, he also notice his pupil on the affected side is constricted and he has a mild lid lag.

1. What is the treatment protocol of choice for this patient?