Can the small pea sized knot behind the left ear that is sore to touch any allergy ?
Patient: My 16 year old daughter has a small pea sized knot, sore to the touch, 3 inches behind her left ear, near the bottom of her skull. Could this be a lymph node, allergy, or......? We just got a 5 month old beagle puppy. She is allergic to cats, could there be a connection? Doctor: Hi,This is very likely to be a simple lymph node. They commonly enlarge in this area for the slightest infection even when the infection is not obvious. It does not indicate an allergy. Regards,Dr K A Pottinger