Normal lymph node
We have lymph nodes scattered throughout our body & they are often detected in the neck where they sit on top of neck muscles.
These nodes are little fluid strainers that take body lymph & remove stray germs from things like bug bites. They are often pea sized at rest & grow to dime sized when working. Within 2-3 wks they often shrink back down unless they are stimulated further.Ask her doc if so.