I have had the unique experience of having the skin on one-third of my body suddenly go AWOL due to critical burns. That's where I learned how important to bodily functions a complete set of skin is.
First there was the excruciating pain with all those nerve endings exposed, minus the ones that burned away completely. Then there was the underlying muscle pain from exposed muscle tissue. Finally, the longest agony was the constant weeping of the skin until weeks later, new skin grew. Meanwhile, I was left to do my own wound treatment on myself, debriding every single day to avoid infection, and trying to keep the wounds moist so they wouldn't dry out and get infected.
Chickens are not immune to experiencing this same sort of agony when injured similarly. I know you understand this, and I am grateful for that. I am hoping you also realize the tremendous commitment you are undertaking for the care of her wounds. When I cared for my missing skin, it became a second "career" for those long weeks. I was lectured by the nurse that originally gave me emergency burn treatment that if I became the least bit lax in my daily care, infection would quickly set in and cause tremendous problems, not to mention renewed pain and much worse scarring than usual.