I have GCA. I was diagnosed a year ago after having lost most of the vision in one of my eyes. I started on 80mg prednisone and have been tapering down - but I have occasional flares. My rheumatologist told me that if I start having symptoms I should go back up to the last dosage level where I did not have symptoms, and re-start the taper process from that point. I see him every 1-2 months, but he responds to my emails if I have a question about how to proceed. I’m also on Actemra and my ESR and CRP levels are always low. I’m at 10mg prednisone right now.