<s>[INST] hi my son had a cold two weeks ago. his throat was really bothering him. i did not give him any antibiotics because he told me he felt better. he did have a fever. now that i notice he has a small lump on the right side of his neck. i am worried thank you [/INST] Hi,It seems that he might be having upper respiratory tract infection or tonsillitis at that time leading to enlarged neck lymph node.nothing to worry, gradually it will be subside.Rule out any infection or carious teeth.Ok and take care. </s>