How do you prevent having an erection after a circumcision?

I'm getting a circumcision soon because I cannot pull my foreskin all the way, I've been looking into it and people say don't have sexual activities or get erections. Is there a pill I take daily to prevent this? I'm worried that if I get an erection out of nowhere that I will ruin the stitches and... show more I'm getting a circumcision soon because I cannot pull my foreskin all the way, I've been looking into it and people say don't have sexual activities or get erections. Is there a pill I take daily to prevent this? I'm worried that if I get an erection out of nowhere that I will ruin the stitches and feel intense pain.
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