
5. A Different Kind Of Blister
The Reddit user said the blister kept getting bigger until it was the size of a quarter. It also remained raw-looking and had a little black spot in the middle. He went to the doctor who said it looked like a spider bite. He left with a five-day course of antibiotics.
After three days of taking the medication, the blister worse than ever before. It had turned gray and doubled in size. The user went to the emergency room, where he was admitted and scheduled for surgery. The culprit turned out to be a dangerous flesh-eating bacteria, and a massive chunk of his leg had to be cut out.