Hi,
Ideally you should see a physician personally for better advice.
However, please try pranayam, the breathing exercises. They will help to revitalize your lungs and remove the scar tissue if any.
Medicines
You can try following medicines
Poonarnavadi kwath 10 ml + Kamadudha 2 tabs early morning empty stomach.
Avoid eating for 30 mins after taking the morning medicine.
Trayodhanga guggal 2 tabs + Bringarajasva 10 ml after lunch and dinner.
Kantakariyavleha 10 gm with warm milk before bed.
Avoid cabbage, cauliflower, brinjal and oily food for best results.
Regards
Next Steps
Please see any Ayurveda consultant near you for more personalized treatment