I depends if it is a chlorinated pool. If so, wait 24-72 hours. If it is natural water, you do not have to wait.
The chlorine in the swimming pool caused your hair to turn green
You should wait at least a month to dye your hair after surgery.
You should be alright to dye your hair at the minimum of an hour later, that lets all the "ingredients" from your shampoo to soak in even if you wash it out. The reason to do this is that the shampoo...
Just wash out the chemicals, you should be fine. Just don't go swimming after the relaxer because it is bad for your hair.
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