Lymph node: There are thousands of lymph node located around the body that help screen out germs. There are many in the neck, head & behind the ear. At rest these are often 1/4 inch in diameter and may grow to marble sized when reacting to a stimulus. Bug bites, skin conditions or viral infections can increase their size.They should shrink down to nl size over a few wks.
Answered 12/10/2013
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