Ugh, just saw your picture. That’s some irritated looking skin. Yeah, you need to break the itch / scratch cycle. The Mercola article I linked above has some ideas for rinses that you can use to wipe her off after she’s been outside.
Do you bathe her often? What kind of shampoo do you use? My favorite shampoos are from Mercola: http://products.mercola.com/healthypets/dog-shampoo/. You might be able to find it at a boutique pet shop near you. I also like Halo: http://shop.halopets.com/Products/All-Grooming-Supplies?type=grooming; and Earthbath: http://earthbath.com/product-category/shampoo/ I would be careful not to use any grain-inclusive grooming products, just in case yeast on the skin is a concern.
You already have one breed susceptible to skin and food issues, but your new pup is notorious for the same issues.
