Can touching lymph nodes make them swell? my 2 yo has large occipital nodes. it worries me b/c leukemia scare 6 months ago. it was mono. advice please

Lymph nodes: No touching the nodes will not make them swell. Most lymph node enlargement in a two year old is due to upper respiratory infections caused by viruses.

No not really: It depends on their size. You should gently palpate them once weekly and keep track of their size, if they are less than 1-2 cm then they are not of much concern. If they are getting bigger, you should get a CBC done and you can find out if there is anything to worry about issues like leukemia which generally will make the child feel unwell and weaker. Good luck.