As mention, once one contracts a tuberculosis infection it will never ever go away. It will only go into remission. It is important, as mentioned to keep up a healthy immune system and have periodic evaluations to determine if it again becomes active.
Once we have TB we are never rid of it. It just goes dormant for a while - sometimes indefinitely - so it never rears its ugly head again. But some of us continue to have problems. I would suggest that you take some good multiple vitamins to boost your immune system. Help your body to fight this nasty germ. - I only had to take the meds once. My Mom had to take them twice. Everyone is different. (She takes supplements now to stay healthy at 94 - and she runs circles around me!)