Get a la Riche Directions dye in a red colour, and put it all over? I have done similar to my hair in the past.
It'll cover the blonde/turquoise with red, which will look intentional, and you may get some purpley bits where it's bluest. It's good for your hair too; it won't damage it at all. Then in a few weeks, when your hair has recovered, you can always use an ash brown if you don't want it red.