Yeah, everyone is different, but also any event that is rare or costly or potentially deadly has very little research done, because there is very little wiggle room for error, and they'd rather just play it safe. It reminds me of the concept of antibiotics and their recommended dosage: complete dosage of antibiotics being 10 days (or whatever) even though you may feel great 5 days after you take them. they want you to keep taking them just to be sure. Kind of like cutting out extra skin around a tumor, just to be safe. The best most people and doctors can do is give you advice on avoiding an infection by keeping it clean, and since most things heal faster when wet (mouth, eyes), they want you to spray something on there, like in my case. But... ointments, like aquaphor neosporin, vaseline, are all oil based, and so they lock in moisture better than a water based spray, while also being antibacterial, so they work.