Haha it's not that bad... It was really more spit than blood, and it was really just smeared on my face and hair, not filling up my mouth. You need to sleep propped up to keep the swelling down at first, so your mouth might hang open. I usually sleep with my mouth open anyway, so I'm sure that contributed to waking up all nasty. It'll bleed a bit, but it's nothing bad. For me the scariest part was getting an IV, because I hate needles. But you literally won't remember ANYTHING. It's awesome.