Its different fir everyone. Ur nurse should of advised you, give her a ring if ur unsure.
I saw nurse at 8 days post op and she took plasters off and put steri strips on. Saw her again at 15 days post op and because theud been oozing/bleeding she put new steri strips on and told me to have a shower in 3 dats and taje them off after shower and then to put new ones on for another 3 days then thats it.