I've just put a brown hair dye on my blonde highlighted hair. Its not brown enough. Can I put another hair dye on or is it too soon?

Its to soon if you dye your hair right after you just dyed it your hair will turn orange my suggestion would be go to a hair stylist to bleach it out and dye it the way you want it or wait up to 3 weeks and re dye it yourself

Reference - personal experience