Welcome to hcm,
As you have got Bell's palsy
,for recovery steroid
is a must.
As you are having 32 weeks pregnancy
there is no problem if short course of steroid is given.
Usually any medicine is to be avoided during first trimester of pregnancy.
Keep in mind that only short course to be taken and that with tapering dose.
But it is better to consult your Obst and discuss the matter.
Ok and bye.