Get her some vitamin B-12 of the METHYL-cobalamin type… most absorbable, and must be taken as a sublingual tablet, absorbed in the mouth. The stuff is useless if swallowed. Do not use the standard cheap cyanocobalamin. Must be the METHYL type.
I have successfully treated and corrected Bells Palsy facial paralysis in two friends and family members with methyl cobalamin B-12.