Welcome @jimhaz. There are a lot of unknowns when you receive a diagnosis and don't know what could be next.
@terrydclaar may be able to share some experience with you. The International Pemphigus & Pemphigoid website has a lot of patient education, treatment and support information that you might find helpful.

Patients - https://www.pemphigus.org/patients/
Treatments - https://www.pemphigus.org/treatments/

Did your doctor provide any suggestions or answers for your questions?