Hello,
The potential for a pleural effusion needs to be looked into with more depth and treated as necessary. This can cause a collapsed lung if not treated and very well could be the cause of her breathing problems.
Take care and God bless.
She has some damage secondary to the tuberculosis. Tuberculosis is never completely cured. It only goes into remission, hiding in various areas of the bidy, not necessarily the lungs. At times a firbrosis develops, spreading and reducing plasticity, which compromising the surface area of the lung. Your question should be addressed to the pulmonary specialist who is monitoring her treatment. There is no "right" answer. On a short-term basis, a steroid, such as prednisone is often administered. Albuterol sulfate and inhaled medications such as formaterol fumarate may help. There are many other areas of her medical history you have not addressed. Rule out a cardiac etiology, for example. Sometimes a person can have two, or even three things going on at the same time.