Best way to cover light dye on dark hair?

[Lunificent]

My daughter dyed her fringe because she was bored! She has school again in a week’s time. What will be the best thing I can buy online to to try to reverse it or colour it back to the original? Pic attached

Don't buy dark brown dye as it will be too dark , the light part will be more porous as it's the bleach component that lightens it and therefore it will be damaged, start with a light brown shade and hopefully it will blend in .

Thanks Green Wasabi. Will do that. This is the product she used.

Can more dye be used immediately or will we need to wait?

Yes great advice, get a light brown shade for sure and don’t leave it on as long as it advises either.

Yes the ombré is just bleach under another name
No need to wait , it will fade quite quickly and you may have to re do until it grows out
Don't buy any 'warm' browns as it will be obviously dyed, as will have a red 'halo'
just buy plain light brown

Thanks both. Will do that.