Dear friend, firstly, do not take the disease lightly, secondly never to stop the anti TB medicines , once started . if the patient had some drug reaction, or drug induced jaundice, then de sensitization to anti TB drugs followed by full course of Rx for 6 to 9 months is necessary. stopping and restarting for no significant reason leads to multiple drug resistance, which is difficult to treat TB and the patient also spreads the MDR TB to other innocent people. better have a follow up check with X-rays and sputum examinations if the patient has lung TB. remember, in TB only thing that cures it is regular medicines.
If she has had some problem then it is better not to follow the first one. Also if the new regime is started, it has to be started afresh, so let her continue the second ne completely.