Fever blisters (cold sores) are fluid-filled red blisters on the areas around the mouth, gums or lips. Its appearance is triggered after a person had fever, colds, fatigue, stress, exposure to the sun, menstruation, and other respiratory infection.
Tag: Fever Blister
The occurrence of fever blisters or cold sores is due to the infection of a virus, known as herpes simplex virus type 1.
Fever blister or even known as cold sores are caused by herpes simplex virus 1. These are basically red blisters which appear on the outer edges of the mouth and on the lips.