I took it for oral erosive lichen planus (autoimmune in origin). It is diagnosed by a dentist, but treated by a dermatologist. The prednisone did not make a dent in my problem; I still have eroded gum and buccal tissue in my mouth, I also have atrophy on the left inside of my cheek. Now that I have been off the drug, I have lost almost 2/3rds of the hair on my head, and I have had to wear a wig for the past 3 weeks. I see no sign of new hair growth on my scalp. I have my eyebrows, but no leg hair. I have not had a haircut since January. Has anyone experienced this with Prednisone? I told my dermatologist and she just shrugged her shoulders. How long before I start to see some hair growth on my scalp?