As long as the nodes are not getting progressively larger, and become smaller when an acute infection goes away (which can take several weeks), I would not be overly concerned. Reasons for more concern would include a red, hot, very tender node; a node that continually enlarges; a large node that is associated with enlarged nodes in other parts of the body (under the arm, and in the groin), or a node that drains fluid to the surface of the skin.
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