I would look for a couple of youtube videos personally.
After doing that I would prolly give her a complete salon treatment; wash and heavily condition her hair, brush it out thoroughly with a wide-toothed comb and let it air-dry.
As a last resort I might try using a hair straightener set on low, low heat. But, I would use Extreme caution doing this as I've burnt AG hair before; not nice.
Good luck with her!