Why do I have a fever the day after a shoulder and neck massage, and what should I do?

Fever generally refers to an elevated body temperature. Under normal circumstances, developing a fever the day after a neck and shoulder massage may be caused by several factors, including normal physiological responses, catching a chill during the massage, poor local blood circulation, muscle injury, or lymph node infection. The specific details are as follows:

1. Normal phenomenon

Neck and shoulder massage can promote blood circulation and lymphatic flow, thereby stimulating the immune system. In such cases, the resulting fever is usually mild and represents a normal bodily response mechanism. It typically resolves on its own without requiring special treatment.

2. Catching a chill during massage

If fever occurs after a neck and shoulder massage, it might be due to insufficient clothing during the session. When exposed to cold, muscles naturally contract to generate heat and maintain body warmth. This muscle tension may lead to an increase in body temperature, causing fever symptoms. It is recommended to monitor body temperature promptly, rest adequately, avoid exposure to cold, and drink warm water appropriately to promote sweating.

3. Poor local blood circulation

During a neck and shoulder massage, localized blood vessels may be stimulated to dilate, increasing blood flow. This dilation can sometimes cause a sensation of warmth or heat in the area. Patients can apply warm compresses to improve local circulation and relieve discomfort.

4. Muscle injury

If muscle damage occurs after a neck and shoulder massage, it may cause pain. Pain is the nervous system's response to tissue injury and can trigger local inflammation and accumulation of immune cells. Such pain stimuli may activate immune and inflammatory responses, leading to localized heat or fever. Under a doctor’s guidance, medications such as Huoxue Zhitong Capsules, Shujin Huoxue Pills, or Diclofenac Sodium Sustained-Release Capsules may be used for treatment.

5. Lymph node infection

Lymph nodes are immune organs responsible for filtering and eliminating bacteria and viruses from the body. If there is already a lymph node infection in the neck and shoulder area, massage may stimulate the affected nodes, leading to local fever and swelling. Medications such as acetaminophen tablets or roxithromycin capsules may be used under medical supervision.

In summary, developing a fever the day after a neck and shoulder massage could result from multiple causes. It is recommended that patients use medication only under a doctor’s guidance to prevent serious consequences. If any discomfort persists, prompt medical attention is advised.