Dovonex is not a steroid (unlike Dovobet), no weaning off is necessary. I just use it over winter, it doesn't clear the p completely but it keeps it from getting too bad and the best bit is it stops all flaking, which for me is worth it alone. I don't bother taking any particular care with it, it doesn't affect any surrounding skin for me at all.
Probably nothing to do with it but I couldn't get on with doublebase, I use E45 but then some people don't get on with that either...