There can be many causes for the swollen lymph
node. First and foremost it could be simply because of repeated sore throats if he suffers from them. Even a infection in the scalp
or a boil in the area can cause this. However what is important is that more important causes like tb and many others should not be missed out. For this you should consult your family physician and he will examine the child and if he finds it clinically significant he may advice a FNAC or a excision biopsy
of the gland.
Regarding his raised bilirubin
, he may be suffering from jaundice-early stage. Some times many a people have raised bilirubin without any other symptoms. Put him through full liver
function tests and a USG of abdomen and consult a general physician or gastroenterologist.