Sorry Janey, I don't know the official answer, but yes there is certainly a link between weight gain and steroids and slow weight loss and steroids.
I always wondered why I didn't do better on diets when I'd exercised more, and eventually realised it was because I had to overdose on my "brown" inhaler to be able to do the exercise in the first place!
Nevertheless, while you might not get huge losses on LL you will lose weight and re-educate yourself so you never regain it again.
HTH
S.x