what to do?

i have 2 does who what it appear to have dry skin. i feed oats so i thought it would prevent that... i gave them both a copper bolus this morning because they needed it, selenium gel last saturday, and my buck has it on his um, well, you know...

im trying to dry up delta. im giving her 1/2 cup of grain twice daily and only milking her to releave some of the milk. and only giving her hay, no alfalfa. what else do i do?