Dentinox Cradle Cap shampoo, you can get it in Asda. Cleared up my little boy's scalp in less than a week.
Oilatum shampoo and comb her hair with the shampoo in and then instead of rinsing it over run a flannel over her hair to wash it out. I did this daily when mine was little and it went completely within a week x
We've left it and just comb it out with a Tommee Tippee comb