She doesn't have lice, i've ruled that out. There is no dandruff. Her scalp isn't even red, before or after scratching it.
Any thoughts? She does have sensitive/eczema prone skin but it's been fine for a while with no flare ups. Her shampoo is dye free but lightly scented (It's Suave) but i've been using it for a while now and the itching/scratching just started within the past 3 weeks.
Re: DD is always itching her scalp.
DD did this too. I switched her to this California Baby shampoo and it eliminated the issue!
https://www.californiababy.com/tea-tree-lavender-shampoo-bodywash-8-5-oz.html
This works for us too. DD has incredibly sensitive skin coupled with some food issues that cause itchy rashes. This seems to help her, though. DD has been taking showers lately instead of baths and I think that also helps because it's easier to completely rinse everything out. I took her to the pedi b/c she was itching so much and of course they look for lice in addition to something else and there was nothing there. Sometimes I'll give her an Aveeno bath or put baking soda in the bath (including rinsing her hair with it) and that also seems to help.