Plasmapheresis Therapy for Autoimmune Diseases

I know that donating only blood is healthy as it expels iron more efficiently than supplements. Donating plasma, however, may have benefits as well.

“Plasmapheresis is used as a therapy in particular diseases. It is an uncommon treatment in the United States, but it is more common in Europe and particularly Japan."

"An important use of plasmapheresis is in the therapy of autoimmune disorders, where the rapid removal of disease-causing autoantibodies from the circulation is required in addition to other medical therapy. It is important to note that plasma exchange therapy in and of itself is useful to temper the disease process, where simultaneous medical and immunosuppressive therapy is required for long-term management. Plasma exchange offers the quickest short-term answer to removing harmful autoantibodies.”

Since hair loss has been described as an autoimmune disorder, would a weekly, bi-weekly plasma donation have any possible benefit?