I was diagnosed 2016. 15 mgs took all the pain away but I did reduce too quickly a couple of times in the beginning and had flares, causing me to up my dose from 7 to 10 for a while. I am in my fifth year and am on 3 1/2 mgs for the last few months. PMR lasts an average of 5.9 years. Very few have remission by or before 2 years. Males get off more frequently. You might google the 2017 Mayo/Mathison study on PMR and prednisone which states the 5.9 years average. When reaching 10 mgs, it is advisable to reduce by 1/2 mgs on a slow reduction schedule. I have given my schedule a day or ago. You must also consider that once on long term prednisone,your adrenal glands cease production of cortisol and they must be awakened around 6 or 7 mgs. You cannot immediately stop using pred because of this. Sometimes it takes up to a year for them to function or not.