Alas, sorry, all the channels are damaged. There's no fixing this one.
You'll need to look for another photo from which you can swap that area of detail, if possible.
No, it can't be done, sorry. It will always look cut out.
In black-and-white maybe you could get away with it, by making the hair look very ("artistically") dark.
I love CC, but to start paying money every month for software you already own??? That's insanity.
Now, start a new post in "Help with editing" so we can talk about your seamless problem. The answer is NOT an action.
NOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!! Don't do it!!!!!
Fantastic! This is excellent news.
Today is the first day of your post-action life. Take control of your editing.
https://www.facebook.com/damien.photoshop/photos/a.183682458346830.39021.183680248347051/1316630498385348/?type=3