Thank you for your query.
I hope he was properly investigated before prescribing anti TB medications.
occurs in the arm where BCG vaccination
It generally does not require any treatment.
But other lymphadenopathy caused by TB should be treated for 6 months.
There are some side effects of these drugs...they will be explained by your doctor.
Hope this answers your query.
If you have any other queries kindly direct them to me.
Wishing a speedy recovery.
Have a nice day.