Thanks for posting your query.
Let me know the associated details along with mentioned.
What was the report of FNAC?
What are other symptoms along with painful lymph nodes?
is an antitubercular medicine and itself alone is not sufficient for Tubercular lymphadenopathy
You should consult with internal medicine specialist and general surgeon
and should go for thorough check up.
He should also go for erythrocyte sedimentation rate
and quantiferon TB gold for exact detection of tubercular etiology.
He should also go for excision biopsy of affected lymph nodes.
Treatment of suspected Tubercular lymphadenopathy persists for 6 months and confirmation of diagnosis is essential.
Dr. Mayank Bhargava