How often should you wash chemically straightened hair

How often should you wash your hair after you have had it chemically straightened.

You shouldn't be washing it for 3 days right after you get it chemically straightened

48 hours after chemical straightning and after that try not to wash it ever night and sleep on a silk pillow case and never go to bed with wet hair if you dont have a silk pillow case use a silk nighty over your pillow until you get one