If you shampoo it a few times, it may fade. Red usually fades very fast. However, since you don't want it, it may just stay in there <img src="/images/graemlins/smile.gif" alt="" />
Another home kit, will not fix it. The color will have to be removed with a color remover or bleach. Then the color you want will have to be put in.
I suggest contacting a hairdresser and having it done professionaly for the best result.
Whatever you do, condition, condition, before and after.