As a nurse of many years experience and having had the the misfortune to suffer debilitating withdrawal symptoms at my first attempt to get off the wretched things I think this link offers a good explanation of the topic.
The two things I'm not over happy about are
1] the final paragraph of section 4 because medical advice should
always be taken when tapering,
It could save your life.
2] symptoms do not wait until you have stopped the drug they also appear if tapered too quickly (below about 10mg a day in my case).
On a personal note I would have liked hyperlinks and references but maybe I'm just becoming too pedantic.
mentalhealthdaily.com/2014/06/10/prednisone-withdrawal-symptoms-how-long-do-they-last/