I saw this recipe in the June issue of Rachel Ray Magazine and thought it was really interesting. I am really intrigued to see if this will help with flea bites.
The recipe says to make sure you check with your vet to make sure the recipe is suitable for your dog

Flea Be Gone Biscuits

Makes about 3 dozen

Ingredients

2 1/2 cups Whole Wheat Flour
1 cup Chicken Broth or water
1/2 cup brewers yeast
3 tbsp vegetable oil

Directions

1. Pre-heat oven to 375 degrees,
In a large bowl stirl all the ingredients until a dough forms
Turn out onto a lighly floured surface and roll out to 1/4 inch thickness
using a 2 to 3 inch cookie cutter cut into shapes
and dived between 2 ungreased cookie sheets

2. Bake the biscuits until browned and crunchy
about 40 minutes
let cool, store in an airtight container for up to 2 weeks

Recipe was found in Rachel Ray Magazine June 2012 Edition.