T.P.
My DS always gets very enlarged nodes after an infection. It's rather normal. Our pediatrician always has us return in 10 days and sometimes again so he can check to be sure it goes away. If it DOESN'T go away, it can cause problems, but not cancer. Our pediatrician told me some kids can keep swollen lymph nodes for up to 3-6 months after a bad infection. So, it's important to watch them closely, but no need to panic.