cold sores
"I was in school around 8:00 and started to feel a tingling sensation, by 10:00 I knew it was a cold sore. I had basketball practice after school until 7:30 so I couldn't use it as soon as I felt it. When I got home I took one pill, went to bed and took another in the morning. Its the next day and the swelling has gone done tremendously and its already getting flat, by tomorrow it will probably be gone."