I am a 26 year old female on anti tb medicines which shall complete 2 months of the course, being isoniazid resistant the doctor prescribed me with rifampicin, levofloxacin, ethambutol and pyrazinamide. The medications were fine for the past month but from few days I am suffering from nausea again. I would like to know how long will these side effects last? Is the treatment working or no? Also after taking rifampicin in the morning I feel as if there is mucus generated coz when I cough I can feel it, what is the reason behind the same?