Do you have a photo for him Linda? It will help him make a diagnosis and recommend a treatment.
The plant in the photo above from last year not only survived but is now making offsets. I pretty much followed Dr. Houseleeks instructions above. After removing it from the soil and cleaning it, I removed all signs of rot by carefully removing all the rotting leaves until all I had left was a topknot of healthy leaves (see the very center healthy leaves in the first post?). They I let the plant dry out for several days and replanted into the raised bed with very good drainage. She did not produce offsets last year so I was really concerned she might bloom and die this year. But look what she is doing today.
Isella 4 17 2011