Fever blisters or cold sores are small red blisters that usually appear on the lips and outer edges of the mouth. They often display a clear liquid and form scabs after a few days. They are caused by herpes virus that becomes active when something triggers them. There is no cure for cold sores, but there are remedies that will reduce the severity and frequency. They appear after colds, fever, exposure to sun and stress during menstruation.
Foods that contain chocolate, pea…