Hello A typical question about transmission for tuberculosis ( mostly through kiss pulmonary tuberculosis spread ) but if due to any reason mild acid regurgitation present in the mouth TB may infection other one ( so personally I would like advise you , please don t engage in kiss ). As for as concerned about anti tubercular treatment , it varies from patient to patient . As in your case , you are having lymph node enlargement , so AKT -4 is sufficient for 7 months . But the duration of course of anti tubercular treatment depends on treating physician according to condition of patient . So continue your treatment till your doctor advise. Good luck.