Silverlady,
It is interesting that you posted this and I am sorry IF it is IC. I just wanted to say I have been using Premarin Cream for about a year now and it has made such a difference! I do not have IC but have had a total hysterectomy. I have also been in pelvic floor PT. You didn't say what your symptoms are but I think I might know.

Anyway, I had my annual exam with my ob/gyn yesterday and he says things are great. Oh, I do have have some MINOR prolapses as well. But he says between the cream and PT...things are not only getting better but the pelvic floor is becoming stronger as well....more supportive. Anyway, I was just glad to hear that I can STOP the Vivelle dot patch and just stay with the cream. It is amazing what that stuff can do! Oh, and I should have clarified...it was my Urogyn who suggested PT and it is my ob/gyn that started me on the Premarin Cream. And I realize you are speaking of Sjogren's I am just hoping the cream helps! And I had all the testing done too; not fun but at least I got the answers I needed.