Fair enough, but I'd hope that a doctor wouldn't give me something and instruct me how to use it if he knew nothing about it, whereas friends probably would.
I'd expect him to refer me to an endocrinologist or whatever, just like my dentist referred me to a maxillofacial surgeon for my wisdom teeth and my GP referred me to a cardiologist for my heart surgery.
But anyway, the pro's for taking steroids just aren't there for me.