My mother underwent TB treatment for one year recently with Levofloxacin 750 & ethambutol 1000, after a spate of failed treatment of six months, two years ago, with ethambutol 800, isoniazid, rifampicin, pyrozinamide. Her symptoms disappeared totally. Her pulmonologist stopped her medicines.He did not do a AFB test on stoppage of treatment. After stoppage of treatment for 15 days she was absolutely fine. Since last two days she has started getting fever (100+) once again in the evenings. Could it be a case of incomplete cure or relapse of TB? very Mild cough with phlegm has also appeared since yesterday.