Thanks for your question on Health Care Magic.
I can understand your father's situation and problem.
Interstial lung disease (ILD) is very broad term. It is actually group of diseases. Amongst ILD, IPF (
idiopathic Pulmonary fibrosis) is the most common amongst ILD. And it is having worst prognosis amongst all ILD.
So first confirm with your doctor whether he is having IPF or not.
Prognosis of ILD is also depends on severity on PFT (Pulmonary Function Test). So also get done PFT.
Newer drugs like perfinodone, N acetyl
cysteine (NAC), Picnovit etc are giving good prognosis in ILD.
Perfinodone is the only US FDA approved antibiotic drug. NAC and picovit are proved
antioxidants which improves lung inflammation.
Chest physiotherapy and deep breathing exercises are also useful. So first know the type of ILD and discuss about these drugs with pulmonologist.
With recent advances, prognosis of ILD is more than 10 years.
Hope I have solved your query. Wishing good health to your father. Thanks.