How long it takes for tuberculosis to get better depends on the severity of the disease and whether standardized treatment is given. For relapsed tuberculosis, it is necessary to choose to adjust the treatment plan and combine anti-tuberculosis drugs for 1 year or even 1.5 years to be completely cured. For TB that is more difficult to cure, mainly TB patients who are resistant to many TB drugs, drug sensitivity testing is required to clarify the treatment regimen of sensitive anti-TB drugs, and it may take about 2 years to achieve a cure.