Get up eeeaarrrrrlllllyyyyyy and get her in and rinse her. Comb and brush her until she doesn't drip water anymore. Then spray Kleen Sheen(we cut ours 1/2 with vinegar) on her, and brush some more. Put her under fans ( I have my one heifer under two 24" fans now), and go out and brush her about every two hours or so. I would also rinse her again at about 4 in the afternoon and do the same thing. Then after you feed (we feed at about 7 p.m.), you might rinse her again and blow her out, and put some Pink Oil in her hair to keep from getting a bunch of dirt in it. Make sure she gets watered enough during the day, and keep working that hair. O0
Don't forget though, that they will shed quite a bit of hair at one time, no matter what you do. Another thing to remember is that if she has the genetics, it will be relatively easy to grow her hair..if she doesn't, then you will have to work really hard, and she still might not be THAT hairy. BUT..... if you work hard and keep her cool, you'll see some nice results.