My granddaughter has two knots at the back of her head bottom right side. my daughter took her dr and he said it was lipnoids. should she get a second?

Not necessarily: With a little time & effort most people can be taught to feel the small, non-tender pea sized lymph nodes in your neck. In that location they are often next to firm muscle & not buried in soft tissues like they are in most of the body. If they become tender & grow larger, they are reacting to something & may need to be evaluated.Most benign nodes swell & shrink over a 4wk cycle.