How Long to Wait to Redye Hair

I dyed my hair today at home, the box said light reddish brown. It came out darker brown with no red.

I am a natural red head (close to auburn) and wanted to go just slightly darker. I hate it...

How long do I have to wait to redye my hair and what steps should I take to get my red back?

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You can go ahead and redye your hair anytime. Just be sure all the color from the hair color you used, is all the way out of your hair. Hint: Your hair should rinse clear in the shower.

Reddish colors only add a hint of red, so you'll need an 'auburn' color to add the red color back.