Possible abscess: If the sore swelling is acute then an infected lymph node is possible. Sometimes a neck abscess can develop either from an infected node, dental infection, inflamed congenital cyst, or spread from a throat infection. A cancerous node usually has no pain. You really need to see someone about this soon especially if there is fever, difficulty moving your neck, painful swallowing, opening mouth.
Answered 3/26/2013
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