Lymph Node

I went to the doctor today because of a swollen lymph node in the posterior auricular region. The Nurse Practitioner asked if it was tender. I said, "Yes (because I keep touching it)." She told me to quit touching it & not to worry about it, but that if any lymph nodes become swollen around the clavicular area, that would "be bad."

Now why did she tell me that?? Doesn't she know that I'm going to keep touching my clavicles all weekend?! SHEESH!