Oncology Questions? Ask an Oncologist for Answers ASAP
Hi there. How long have you had this lump on your arm? Do you have any skin lesions or rashes anywhere on the arm or hand?
An infection anywhere on the hand or forearm or elbow area, even a small one associated with eczema, will drain up the lymphatic channels of the arm and into the upper chest.
This can trigger the enlargement and inflammation of lymph nodes along the way. I would suggest you have the eczema treated and try a course of antibiotics.
With resolution of any infection, the lymph nodes should slowly return to normal within 2 or 3 weeks.
If this did not fix the problem, a CT scan or MRI of the arm would provide a lot more detailed information about the nature of this lump.
Possibly, if you are in good health otherwise and get the eczema under control (as it can lead to tiny cracks in the skin and the continued introduction of bacteria under the surface).
I would suggest a CBC to check your white and red blood cell counts. You might also consider a CRP or ESR to look for inflammation in the blood, though these tests are quite non-specific.
That is a typical approach to treating an inflammed lymph node without any other explanation. It cleans the skin, so to speak, and reduces the corresponding inflammation in the lymph nodes.
Intense pain is unusual with an inflammed lymph node. They may be tender to touch and/or achy but not intensely painful. Intense pain or burning is more suggestive of shingles, which may or may not have a rash, but certainly involves an inflammed nerve, and may cause nearby lymph nodes to swell as well.
You're welcome. Hope this improves soon.
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