Bob, They think Hidradenitis suppurativa is autoimmune related against the sweat glands. I believe I have suffered a bit of this previously but was never diagnosed. I was afraid when they put me on prednisone, that is would get worse because of the immune suppression. Instead they all went a way and have not been a problem since. So I guess mine were autoimmune related. I have been on prednisone for 2 years and this was the only good side effect. They put me on prednisone for MG. I hate prednisone it has so many bad side effects. I also take mestinon and cellcept and a bunch of other meds to counter act the side effects of prednisone,

Prednisone should be a short term treatment for MG. Most neuro start you on another immunosuppressant too like cellcept and imuran. These take a long time to start working more than 6 months sometimes. Prednisone gives immediate relief until the others begin to work.
Good luck
kathie