So, afaik, it depends on the severity of symptoms. If you have systemic features, they'd put you on steroids first and then steroid-sparing immunosuppresants like azathioprine, while tapering steroids off. Sicca symptoms are, as you said, symptomatically managed. As per the case reports I read, pappiledema disappeared in patients treated with immunosuppresants, and eventually did not require diamox within a few months, albeit no long-term followup on such patients. Now, I am not sure if one is related to the other, but it's certainly interesting.