Brief Answer:
Follows.
Detailed Answer:
Dear Sir,
Thank you for posting your query on XXXXXXX
Well looking into your problem I would like to tell you that I would agree with your doctor that the lymph nodes were non cancerous as they regressed on doing the antibiotic course .
Your smoking of smokeless tobacco and development of ANUG ( Acute necrotizing ulcerative gingivitis ) are linked and there are many case reports suggesting a relation between the two . So, it is a probability that you are developing it again . I would advise you to avoid tobacco smoking which will cure this problem.
Take care.
Dr. Shruti