The purpose of lymph nodes is to remove bacteria, foreign material and cell debris from the lymphatic system. Sometimes the number of microorganisms entering the lymph node is so great that the node cannot detoxify the germs the way that it should. When this occurs the node becomes infected.
Since you’ve got the complaint of itchy scalp, you may be suffering from Tinea Capitis or Ringworm (fungal infection) of the scalp. Ringworm is a fungal skin infection that occurs on the face, body or scalp. The symptoms of Ringworm or Tinea Capitis include a dry itchy scalp, scaling, crusting, inflamed nodules, hair loss and tender enlarged lymph nodes on the neck. Because of the scratching that is involved with the condition it can become secondarily infected with a bacterial infection.
An outer ear infection can also result in the enlargement of the lymph nodes although in majority of the people, there are symptoms of pain in the ear.
I think in your case it could be fungal scalp infection and secondary bacterial infection. Please continue to take the prescribed antibiotic as it may help and I’ll advise you take an opinion of a skin specialist also to rule out a fungal infection of the scalp.
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