Tuberculosis is an infective disease caused by mycobacteria. The most common symptoms include: chronic cough with blood in sputum (if the tuberculosis is pulmonary-most frequently), fever, night sweats, and weight loss. The treatment includes one or more antibiotics depending on whether latent or active tuberculosis is present.
Once the treatment is over and the symptoms have subsided, your general health can be improved. Gaining back your weight is simple as in every other healthy person. Taking food rich in calories and proteins is recommended. Also, taking vitamin and mineral supplements to compensate for their loss might be helpful.
Please consider that it might take longer to gain back your previous weight. Also, when the levels of vitamins reach the normal blood level, you might want to keep taking them for several months more in order to fill the depots in the organism.