Well, we tried the prednisolone tablets and tried removing the dex and she relapsed, new sores and all four limbs swollen. So back on the dex (Sat. Night 30 mg IM, Sun. Night 20 mg IM and then Mon. Night 10 mg IM). As each time before, the dex IM does wonders for her but it appears she may be getting it back. I'll know for certain when I get home tonight. I hope to talk with vet today to determine what to do if she does relapse a third time.
She is eating well and gaining back some of the lost weight which is good news.