2 yo with itchy scalp

[Trillian]

You could try some QV wash on it, or bath her in alpha keri oil.

[Netix]

I use Dermaveen shampoo and conditioner on my 14 month old. I think it is very good, you get it from the chemist.
I also bathe her in qv oil, which I must say I think is the best baby wash.