I had a virus a couple or three of months ago and since have noticed that
one of my lymph nodes in my neck in front of my ear has enlarged.  The
doctor measured it at about 23mm.  It is hard like a very tight water
balloon not like a rock but it isn't tender. It seems as though I can move
it around somewhat though.   The doctor is stumped but says that if it
doesn't go down in the next 2-3 weeks he is going to refer me to an ENT doc.
He says the size is what concerns him.  I asked him to rx an antibiotic just
in case it isn't inflamed due to an infection.  The fact that it isn't
tender concerns me as the literature says that with infection it is usually
tender.  I don't notice any of the other lymph nodes that I can get to on my
neck, armpit or groin to be enlarged.  How concerned should I be?  What are
the chances with these details tht it could be cancer?  I do feel somewhat
congested, have post nasal drip and my nose often runs. Any advise or
feedback would be appreciated.  Thanks.