Collapsed lung recovery?

Depends: A collapsed lung may be related to a pneumothorax, or massive fluid and atelectasis. Some may require surgery such as placement of a chest tube for a pneumothorax with recovery of several weeks. Large fluid collections or atelectasis causing lung collapse are resolved quickly by removing the fluid and or bronchoscopy with immediate recovery.

Pneumothorax: Generally excellent recovery saw your other question too depends on findings, and interventions like chest tube, or vats smoker emphysema age othe pulmonary diseases family be careful for a month or so. Surgeon will get x-ray to be sure you are expanded and no problem. Start like a novice and work back to full, program. Pain-stop fatigue-rest.

Check with your doc: Check with your lung doc. A chest ct without contrast may be useful.

Patience: Chest tube drainage/evacuation will often resolve pressure imbalance instantly. The hole in the lung from trauma or spontaneous collapse can potentially seal in just a few days (like a scab). The lung tissue takes longer to fully heal, depending on type of injury. If from trauma, associated chest wall injury (rib fractures, etc...) as well as chest tube site may take weeks to months to heal.