How to deal when the pain is at an 11?

Hey All. How do you deal when the pain get REAL bad? I've been in the midst of a flare up since last week, and the pain is intense; to the point that i've been consistently nauseous. Part of me feels like I should go to the emergency room, but 1- they never believe us when we say we're in this much pain and 2- it's cold and flu season, and hospitals are terrible places to be for an immunocompromised person rn.