How to get NRAGE crimson red out of hair!?

i bleached my hair all over and then underneath my hair i dyed it crimson red. it has been about a month and its still in my hair. iwant to change to a different color but i want to get the red out first so the colors dont mix and look stupid.. ive washed my hair with dawn dish soap because ive read somewhere that it helps get it out and my friend told me also.. but it only faded alittle. any other suggestions?