For about a week I've had a swollen place in my neck. It's definately a gland or lymph node. It's in the back about midway between my ear and my neck bones on the right side. I do not have a fever or sore throat or ear ache. Today the swelling has gotten bigger (about the size of a small chicken egg)and another place nearby has started to swell up, too. The only symptom I have is this swelling and a little tenderness to go along with it at the swollen area.
Is this serious and needs medical attention, or should I keep waiting it out and see if it clears up on it's own?