Hello. My dad found a lump on the left side his neck about a week ago. I felt it. . It feels like a swollen/enlarged lymph node and it is firm/rubbery and moveable. It started out being the size of a marble. I felt one in the same spot on my neck as well. My dad was stung by a wasp on his left hand about a month ago. His entire hand and part of his forearm were swollen for a few days. I have noticed the the bump has gone down a some over the past week. I'm sure my constant feeling of it doesn't help either. I'm just wondering if this could have come from the wasp sting. He doesn't seem to concerned but it is driving me crazy. Any help would be great. Thanks.