Instead of assuming that all of the other dermatologists are wrong on this subject haven't you considered that maybe this 1 guy is wrong?
I will take the word of every other dermatologist I have spoken to/heard about over the word of this 1 guy.
Not to mention tons of literature stating that hydrocortisone in minimal potencies are safe for long term use.
I'm sure there are conflicting reports, especially by the kinds of alternative doctors and literature you prefer, but that's to be expected when it comes to pretty much any conventional treatment.