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TB of cervical lymph nodes is totally curable. You should stick to the treatment since it take months to cure.
TB lymph nodes increases gradually as it is a chronic disease likewise the size of the lymph nodes decreases gradually after treatment. You can do a Lymph node biopsy
to see the TB bacterial load and the treatment affects can be assessed.
TB treatment is Free in all District level Government Hospitals. All the medications are available in free. Make use of it.