It is a chronic disease. If I had not had a type of surgery I would have been in a wheelchair or bed bound by now. Progression is not a set time frame each person is different. Some Cysters have been dealing with no surgery for 10 years or more. Mine progressed fast, within 10 months I was losing body functions. If I had had caring doctor's from the start I might could have slowed the progression with a diet/lifestyle change. Stay away from Physical therapy, it expedited the progression. Water therapy is the way to go.
Can it get better? I personally do not believe it.