My husband was diagnosed of PTB in year 2009, he was advised to start PTB medication right away and he complied. After 2 mos after taking the medication, he developed skin allergies, during his follow-up check up with his pulmo doctor, he was advosed to stop taking the medication because the 2nd montbresult of xray is okay, meaning the scar did not grow bigger. Is it okay that he stopped the medication? What may happen if he didn't finish his 6 mos meds.Until now he is aymptomatic and based from his recent chest xray there is no changes from the previous xrays.