After you get a relaxer, how many weeks do you have to wait before you can wash your hair?

a week or 2.After you get a relaxer, how many weeks do you have to wait before you can wash your hair?
I wait about 2wks. I tend to have a dry scalp.After you get a relaxer, how many weeks do you have to wait before you can wash your hair?
I believe it's actually only 48 hours. I always waited 2 weeks though to help make it last longer.
1 week