Hi Iwas Diagnose Of Ptb Left Upperlobe In Xray But

hi iwas diagnose of ptb left upperlobe in xray but my sputum is negative year of 2013, they said the sputum is negative only antibiotic given medicine, now, 2016 I have 4 kids, they always have cough and cold, my daughter is having terrible asthma, the doctor asked is there in your family have ill in the lungs? i check and xray again and it shows ptb both upper lobe, but sputum is still negative the doctor said only antibiotic cause of respiratory tract infection but more months i was worried of the bloob in my mouth only a little , the doctor gave me anti tb first 2months rifampicin, isoniazid, pyrazinamide and ethambutol, but later of 3months is the only 2 of meds the isoniazid and rifampicin, now after that my xray shows a minimal of ptb but i still have ptb, what i gonna do? do i need a stronger meds to ease the ptb?