I put a perm in my 4 year old daughter's hair and her hair came out really bad around the edges. What can I do

I put a perm in my 4 year old daughter's hair. And her edges fell out really bad. What can I do to grow it back long and healthy
Update: i don't wanna cut it because the rest of her hair is long. It's just the edges. What's a good shampoo and conditioner i can use. Please help!!!!
Update 2: what's the best shampoo and conditioner that I could use for her hair
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