Do cold sores cause swollen glands?

Yes, cold sores can cause swollen glands.

Cold sores are caused by the herpes simplex virus (HSV-1). When HSV-1 enters the body, it can cause a variety of symptoms, including:

- Cold sores: Small, painful blisters that form on the lips, mouth, or nose

- Fever

- Fatigue

- Headache

- Muscle aches

- Swollen glands

Swollen glands are a common symptom of cold sores. This is because the virus can cause the lymph nodes in the neck to swell. Lymph nodes are small, bean-shaped organs that help the body fight infection. When they swell, it can be a sign that the body is fighting off an infection.

In most cases, swollen glands from cold sores will go away on their own within a few days or weeks. However, if the swelling is severe or does not go away, it is important to see a doctor.