And shower regularly (medium to hot water)?
I always recommend taking a week to 10 days before allowing direct water pressure on to the recipient area where the hair has been transplanted. For the most part you should be ok as soon as 48 hrs, but it doesn't hurt to just be a little cautious and give the grafts enough time to make sure that you don't do anything to disturb them. So take 7-10 days of being extra cautious and then after that you can submerge your head and allow direct contact from the shower to the area again.