I have a 1947 medical text that can shed some light on tuberculosis treatment at the time.While it is not specifically a military medical book, it is true that whatever was learned in military hospitals was quickly incorporated into medical school teaching afterward, so this book being published just after the war might give us a good picture.
Treatment seems to have depended on whether it was acute tuberculosis, or chronic tuberculosis.Beyond that, it is also interesting to note that the bacillus that causes tuberculosis can go not only to the lungs (which is what we usually think of) but also to the cerebral meninges (that's the lining around the brain), the kidneys, bones and joints, intestines and skin.So again, treatment will depend partly on where the tuberculosis is.
For acute tuberculosis, the tubercle bacilli have entered the bloodstream in large numbers, so several organs get hit at once, especially the brain and lungs.Quoting from the 1947 textbook, "Prognosis and Treatment:The disease is almost always fatal and the average duration is three or four weeks.The treatment is palliative."
For chronic tuberculosis, the outlook is brighter but still not favorable:the textbook says "one-third of all patients with advanced lesions die within five years."Treatment seems to have focused on absolute bed rest for several months, followed by graduated exercises in open air.In that bed rest period, I found it interesting that "During the night windows should be wide open no matter how cold it is or how stormy."A daily bath with an alcohol rub was given.The patient was taught how to carefully expectorate into a special cup.Heliotherapy (sun exposure to the whole body) was falling out of favor for pulmonary tuberculosis but was still used when other parts of the body were affected.Deliberately collapsing the affected lung and introducing sterile air into it was used for advanced cases.