Actually, thinking more about my post of 10.35, I can see how I would be unreasonable to insist my DH did my hair the way I wanted it. I think if I had kept my hair, I might have used my PIP to pay for a hairdresser wash and blow once a week (like my grandmother!)
I know how important appearances can be to a teenager, would it be possible, if she finds her hair too difficult, and you don't have time, to use some of her DLA to pay for a hairdresser? A mobile one could come to the house.
I know it sounds vain and shallow, but I think when you are suffering with health issues, your appearance does become more important. I am a none make up wearing, scruffy, feminist type, but when I lost my hair, I suprised myself how upset I was - I actually ventured into the style and beauty boards - who were very helpful!
You will get good advice in SN, but I suspect it will be geared towards letting her have her hair the way she wants.
Would the hairdresser from DLA be any use, do you think?