My 5-year-old kid has had swollen lymph nodes on his neck for over ten weeks. Ten weeks ago, I noticed swollen lymph nodes and waited to see if they would go down because I know it can take some time for them to go down. Because they did not shrink, I took him to his doctor. The doctor said it was good that we came and gave him antibiotics and did not do blood work, etc. As I am giving my healthy kid antibiotics, I ask myself what is the reason for an antibiotic if the doctor did not do blood work or confirmed that he has a bacterial infection that caused swollen lymph. He has no other symptoms. What test would you recommend? Before I noticed swollen lymph ten weeks ago, he was not sick for months. So I can not link swollen lymph to a cold or fever and say that lymph nodes have swollen and just did not shrank.