My sister in law had a little lump behind her ear which grew into a bigger lump. Her General Dr. said it was a benign cyst, but sent her to a surgeon to remove it. While she waited for her appointment, it went away on it's own.
If you have any swellings at the side/ back of the neck, it could be a swollen lymph node from virus, or an infection or something but best to run it by your doctor just to make sure it's okay.
Post Edited (dorri) : 3/31/2016 3:52:20 PM (GMT-6)