Hi
As long as you've washed your hair well and rinsed it clean there isn't a problem about getting it dyed (to my knowledge anyway) What you might be thinking about it when you get your hair dyed then go swimming, you're best leaving swimming out for a few days after getting it dyed but going swimming then dyeing your hair shouldn't be an issue as long as you've rinsed it completely chlorine free.
Thanks
MrsE
As long as you've washed your hair well and rinsed it clean there isn't a problem about getting it dyed (to my knowledge anyway) What you might be thinking about it when you get your hair dyed then go swimming, you're best leaving swimming out for a few days after getting it dyed but going swimming then dyeing your hair shouldn't be an issue as long as you've rinsed it completely chlorine free.
Thanks
MrsE