What causes a pulsating sensation in the neck behind the left ear, and what should I do about it?

Pulsation on the left side of the neck behind the ear may be caused by factors such as cold exposure, myofascial inflammation, or lymphadenitis. Symptoms can be relieved through physical methods or medication. Specific analyses are as follows:

1. Cold Exposure

If the neck is not adequately kept warm, exposure to cold air may stimulate the area, causing muscle and blood vessel spasms and contractions, leading to local pain, pulsation, soreness, and swelling. Applying a hot water bottle for heat therapy at the affected site can accelerate local blood circulation and alleviate symptoms.

2. Myofascial Inflammation

Prolonged periods of working with the head down or using electronic devices can keep the posterior neck muscles in a constant state of tension, resulting in chronic strain and inflammatory changes. As directed by a physician, topical application of medications such as diclofenac diethylamine gel or ibuprofen cream may effectively relieve symptoms.

3. Lymphadenitis

If nearby organs develop an inflammatory infection, inflammatory factors may travel via the bloodstream and stimulate cervical lymph nodes, causing symptoms such as swelling, pain, and fever. Under medical guidance, oral antibiotics such as cefixime capsules or amoxicillin capsules may be taken to reduce inflammation.

In addition to the above relatively common causes, similar symptoms may also result from conditions such as peripheral neuritis or cervical spondylosis. It is advisable to visit a hospital for thorough evaluation and follow appropriate medical treatment as recommended by a doctor.