A.V.
2 of my kids (ages 9 and 10) have always had large lymph nodes in the neck on a regular basis. they get EVEN BIGGER when they are sick - but these 2 kids are sick less often than my oldest one and his nodes are normal size. The doc said some kids just have larger nodes and that is okay - means their body is getting rid of things before they "take root" - so unless they get MUCH larger, or hard or painful to touch, he said not to worry about it. It is hard to NOT to worry - but as time has gone by and they've been fine, I have relaxed a little more...
All the best!
A.