Ever since my 4yr old DD got hair, she has had this relentless patch of knotted, super super frizzy hair right across the back.
I've tried everything. Using conditioner, conditioning masks, changing the shampoo, hair oils, wide tooth combing when wet then a fine tooth comb, detangling sprays (many), absolutely nothing helps, besides chasing her with the tangle tweezer (because it hurts her so much, she runs....) painstakingly pulling it through and eventually, shoving some hair mouse on, then another good brush and then one last brush through when the mousse has dried.
Surely there must be some way of preventing this from happening in the first place? Any ideas what could be causing it?
I cannot do the mousse routine every single day as it's a nightmare.
I did think to begin with, that it was perhaps where she has her head when she's asleep, but she sleeps on her side?
For context, she refuses to tie her hair back or have any slides/bows in it (she is awaiting an ASD assessment) so I can't even see if keeping it up helps prevent it 
Help!
Thanks