We have used 3 packs of Coourb4. Her roots are natural blonde colour, then she has 5 inches of ginger hair then the rest (to almost waist length) is an auburn colour. She has bought a semi permanent dye called Iced Blonde which has an ashy tone but also a PicknMix Blonde without Bleach kit. Are either of these a good idea?
The semi permanent one won’t last long- think a trip to the hairdressers is your best bet. My friend made this same mistake years ago- Bleach London do a silver shampoo which fixed it, she sat with it on her hair wrapped in cling film for a few hours then used it every wash for a few weeks
Please take a trip to your local salon to avoid any further damage. Yes it may cost but in the long run it'll be better for her hair. Some of these chemicals in shop bought hair colours/strippers are awfull.