The drugs used to treat tuberculosis are not very expensive. Usually, four types of drugs such as oral isoniazid, rifampin, pyrazinamide, and ethambutol are required after a clear diagnosis of tuberculosis. These four types of drugs are not very expensive, but because anti-tuberculosis drugs need to be used in combination, and the course of treatment is also relatively long. Therefore, in the course of regular anti-tuberculosis treatment, it is important to closely monitor blood count, liver and kidney function, and to have regular follow-up examinations, such as chest X-ray or chest CT. Therefore, the cost of tuberculosis treatment is relatively high, but its drugs are relatively inexpensive.