Regarding the blisters between the toes from the rubbing. What about trying some liquid bandage, new skin, or something similar? If the foot itself is healed & the vet wrap is rubbing blisters & causing new wounds - that might be a viable option. You would want to make sure the blisters are clean before "trapping" any bacteria in the healing area though - so a good soak in soapy water, then an Epsom salt soak rinse perhaps?