Thanks for H.C.M. Forum.
As you mentioned that your wife having 9 month pregnancy
is a steroid
and it is very effective medicine in itching.
In early stage ( trimester 1st & 2nd) of pregnancy this is a harmful medicine .
Your wife is at full term ,so she can use this topical cream for itching without any harm to fetus or mother.
As at this fetus is fully developed so no need to worry.
Good luck. Dr. HET.