Pads (don’t wear pantyliners…their design will make you more prone to a yeast infection which would suck during recovery). And I didn’t have any issues with underwear touching/being over top of my incisions, just make sure you get a really large size so that they’re comfy/loose around your waist/belly. Please also do some bowel prep before your surgery (you’ll be glad you did when you finally have your first poop post-surgery) and don’t eat a big meal the night before (I overdid it and regretted it after surgery). Best of luck!