EWO is right, the Cut Heal is the way to go, it's like fishy oil, some do love it though.

Keep him out of the crate, and if you can chain him up until it heals that would be good, no more fence to bash.

Ditch the pedialite and add more water, a dog on raw will not drink much, add 40oz to his feed, that will get the hydration up. Adding some kibble should help him retain hydration also. Everything you're doing will work, stick with it, but if cut heal stays on after a day just repeat with it, don't rinse it off with the Chlorhexidine and Vetricyn.

S_B