My daughter 3 yrs 7 months has small round not protruding lump at hairline Bhind ears.she had these when she was few months too and doctor had said it's common in children to have swollen lymph nodes.then they had gone away. Please guide if it's the same or something I should show the doctor. She had flu but it's been 20 days since then and only now I felt it. Both sides do there are two. Overall she is completely fine