One funny story I can share with you - I'm 74 and my wife is 73. Besides being much better looking than I am and in better health, she looks a lot younger than me. I used to laugh when I saw her doing exaggerated vowel facial exercises when she was in her 30s. I don't know if it made any difference for her because she hasn't done them in many years as far as I know but it does sound reasonable that if you can exercise the muscles in the face it will help. I did a quick search and found a site with a video on the facial exercises - it will give you a good laugh if nothing else:
http://www.slate.com/articles/life/fitness/2011/01/cheeks_of_steel.html
John

This is great and I will try it! My cheeks have started to become puffy so the exercise might help. I see the rheumatologist tomorrow with the results of my recent bloodwork so am keeping my fingers crossed that she might reduce the prednasone from 10mg