Have you tried the Mustela newborn cradle cap shampoo? It's white packaging with blue writing - we picked it up from a local pharmacy for about $20. Definitely worth it! Bethany had really bad cradle cap and finally when she was about 1yr old a friend suggested it. It made a huge diff - reduced it straight away, and after a while it actually disappeared. (Took a while cuz we weren't religious about using it I think.)
It wasn't until Kaitlyn was getting it really badly and I took her to the drs bout that and her eczema that I realised the two were linked. With her, because we got onto it so fast (I recognised the signs since Bethany had had it so bad) she got rid of it really quick. We use aqueous cream to wash her, starting by lathering it on her head/hair before washing her, then leaving it to sit before washing it off her head last thing before getting her out of the bath/shower. We did that for about a week or so before using the Mustela one intermittently as well. Afterward I gently rubbed aqueous cream all over her head and I think I may have put a little hydrocortisone on the worst patches. When I remembered, I'd put more aqueous cream on in the mornings too. (I admit it definitely helped that she only had a little hair!) Anyway, within about three weeks there was no sign of the cradle cap, except for the odd patch of dry skin on her head. Blew me away since it took so long to get rid of Bethany's! I think the big thing the dr said was to make sure it didn't get too dry, thus all the aqueous cream.
Oh and I vaguely recall gently scraping over the top of the worst patches of the nasty yellow gunky looking bits with my little finger nail (not enough to 'scratch it off', just enough to coax it off if it was ready), esp over her eyebrows since that's where it was most obvious! Usually after her bath was best cuz it would be softest. I then immediately coated the patches I'd removed with aqueous cream and they began growing back slower each time until they didn't grow back at all.
Hope that helps :)
Edited to make sense :P
And also to say that I'm guessing there may be no 'quick fix' since the problem is ingrained for her like it was for Bethany - hopefully you'll find something like this might ease it and at least reduce the irritation soon though! Let us know how you go.
Edited by kmarie