Thank you for your query.
node more than 1 cm should be treated.If there is no scalp
or skin conditions in the nearby area then check for dandruff
Dandruff should be treated if there is any.
Otherwise an antibiotic locally or orally can be tried for 7 days after consulting your doctor.
Consult your doctor if the problem persists.
If you have any further queries you are free to consult me.
Hope this answers your query.
Wishing a speedy recovery.
Have a nice day.