My 12 year old son has a lymph node on the left side of his neck that has been swelling and receding for the past month. He does not have a sore throat but occassionally complains of drainage in his throat. It tends to swell after he has spent a lot of time outdoors on the weekend and improves when he is inside more during the week. He doesn't feel bad and his appetite is very healthy. His voice is currently changing.