For kids who get cold sores over and over again, they will often feel some pain, burning, or itching at the site of the cold sore before it appears.
Other symptoms of cold sores include:
- a group of vesicles (small, fluid filled blisters) appearing on a red area of skin
- vesicles that quickly develop crust on them
Untreated, cold sores usually go away in 7 to 10 days.

