I have a very painful swollen lymph node on one side of my neck, it started off being small and tender, I touched and massaged it severally. Its important to chip in that i have also had a kind of injury on my scalp that usually comes up when my hair is grown and goes on its on a few days after i cut my hair low, On this occasion i had the injury in two places on my head, as it was drying up the lymph node swelled . Now its hard and aching, i am very worried.