Thanks for writing to us.
What you are having is known as reactive lymphadenopathy
. The lymph nodes have enlarged due to scalp pathology. So you basically need to treat your itchy scalp. Itchy scalp in your case could be due to severe dandruff, lice infestation
, fungal infection
, boils etc. Meet a dermatologist
to rule out the causes. Once the scalp reverts to normal, lymph nodes will get back to their normal size too.
Hope that helped.