You are alright.How old is she?
If she is under 1 year, it usually does molt out.
White on the feet could be from injury in my experience.
Although it should molt out with the rest.
A lot of white on the face as a chick can indicate they are sensitive to parasitic white as an adult which will express in cockerels as they reach adulthood.
Someone correct me if I am wrong...
Chooks man