My Hair Started Falling Out And I Discovered I Had

My hair started falling out and I discovered I had a thyroid problem but the hair loss continued after medication then I discovered I have Sheehan syndrom and empty sella. What alternatives do I have to taking steroids? I took it for a 5 months but my face became puffy and I gained 20 lbs when I came off I felt fine but my hair continues to fall out a lot. What can I do to prevent the hair loss I am taking thyroid meds but the hair loss continues