What is pulmonary fibrosis? is there a cure for it?

Pulmonary fibrosis: Just means scarring of the lung tissue. The prognosis will depend on the underlying cause. It is likely treatable, but unlikey that the scarring will resolve completely.

Depends on the kind : Pulmonary fibrosis is a loose term. Treatment depends on the kind. Idiopathic pulmonary fibrosis (ipf) has a poor prognosis. Pirfenidone is the only drug approved for ipf in most of the world except the us.