Great, that's more like it. Lovely photo!
You'll find that this problem is harder to fix than it should be, while you've got all that red channel clipping at the shadow end. Can you re-process the raw file without it, then post the photo again?
Yeah, not easy.
Did you take any other photos showing hair at different angles? Lying on the side, or even just turned to the side a little? Anything that might provide some hair we could borrow?
Oh dear. This won't be easy, but I'm confident we can fix it if we work carefully.
First, go ahead and do your raw processing as normal, then post again for me when you're ready for the Photoshop work to begin.