Cold sores or fever blisters mostly appear on the outside of mouth, lips, nose, cheeks, or fingers but may affect any part of the body.
It is a viral infection caused by the attack of herpes simplex virus type 1.
It is manifested by following symptoms
- Fluid-filled blisters
- Red and swollen gums
- Flu-like symptoms
- Tingling and itching
No proper curing method is available to fight against it but some self-management techniques like ice or cold water implement and nonsteroidal ointments can help.