Lymph nodes, which are part of the lymphatic system in the human body, are organs spread throughout the human body and comprise of a high concentration of lymph capillaries. As such, they filter lymph of waste matter, toxins as well as fight disease-causing organisms with the help of lymphocytes.

However, these nodes may swell from time to time depending on a variety of factors. Antibiotics are one of the causes of swollen lymph nodes. However, it is important to recognize and rule out all the other common causes of swelling of the lymph nodes before seeking treatment.

Can Antibiotics Cause Swollen Lymph Nodes? If you have a prescription for any of the following types of antibiotics, it is important to examine your lymph nodes regularly for any signs of swelling:

  • Cephalosporin
  • Penicillin
  • Antibiotics prescribed for typhoid fever
  • Antibiotics prescribed as part of an anti-epilepsy drug regimen such as Phenytoin
  • Sulfonamides


However, the most common causes of swollen lymph nodes include the following:

  1. Localized Organ Infections: In most cases, swollen lymph nodes indicate the location of an internal infection of a certain body organ. For instance, the main cause of swollen lymph nodes in the neck is throat infections.
  2. Lymph Node Infections: In some cases, lymph nodes themselves may be inflamed or infected. The most common lymph node infection that causes swelling is lymphadenitis.
  3. Lymphoma: When cancer attacks the lymphatic system, it causes a condition known as lymphoma, which typically causes lymph nodes to swell and hurt.


In order to identify and get timely and effective treatment for swollen lymph nodes, look out for the following symptoms:

  • Swollen lumps in areas such as the neck, jaw, back of the head and mouth
  • Tenderness of lymph nodes
  • Inflammation and redness of the skin around the location of lymph nodes
  • Fever


Before you seek treatment for swollen lymph nodes, it is important to identify the exact cause of the swelling because different causes of swollen nerves require different treatment approaches. Therefore, ask your doctor if the swelling is due to the infection of the nodes themselves or due to drugs such as antibiotics.

Depending on the cause of the condition, the treatment options may include:

  • Antibiotic prescriptions (if the swelling is due to bacterial infections)
  • Antiviral drugs
  • A lymph node biopsy and cancer treatments

Additional Information – Swollen Lymph Nodes



In most cases, when lymph nodes swell, it is an indication that the lymphatic system is struggling to fight off an infection. However, it is important to get an accurate diagnosis for swollen lymph nodes in order to prevent serious health problems.