The length of hospital stay for patients with pulmonary fungal infections cannot be generalized and is closely related to the severity of the patient’s condition. Pulmonary fungal infections should adhere to an adequate amount and course of antifungal treatment, which can take 2-4 weeks in some patients and may take 3-6 months in more severe cases, especially for patients with invasive pulmonary fungal disease, the treatment time is relatively longer. If symptoms are significantly relieved after treatment, sputum culture can be rechecked. If no fungal spores or mycelia are found in two consecutive sputum cultures, consider stopping intravenous medication and switching to oral medication. The specific medication should be combined with the clinical situation and guided by the doctor’s interview.