Do Fever Blisters Make You Sick?

Fever blister means the same thing as cold sore. About 80% of adults have had a cold sore at some point in their lives. The first time it happens is usually the worst. A person may get a fever or feel sick.

Can cold sores cause flu like symptoms?

Skin redness around the sores. Pain or itching in the area of the outbreak. Often the pain or itching develops 12 to 24 hours before the sore become visible. Flu-like symptoms, including swollen glands, headache, body ache, or fever.

Are fever blisters dangerous?

Cold sores are generally not dangerous and do not cause any permanent damage to the skin. Treatment does not cure the infection and is not necessary for most cases. Avoid picking the scab or breaking blisters as this can cause secondary infection with bacteria, or scarring.