I'm sorry if I seem way to anxious and too worried and I know this situation is stupid, but basically, I have an Otterbox case on my 6s and I opened the little flap to the Lightning port and my hand was sweaty. I usually wipe the sweat off the flap but this time it slipped off from my fingers grip and suddenly went almost to the closing position. I'm worried sweat could've flew into the port. I didn't have a flashlight so I couldn't see inside properly. I know sweat is salty which is highly corrosive, which is why I'm worried. If sweat did get in, what is the worst it could do?