Diet
Maintain healthy weight and stay hydrated
Take vitamin D supplements or via food rich in vitamin D (egg yolk , cod liver oil , salmon )
Maintain balance of carbs and fats in your diet
Eat fibre rich food and add probiotics
Exercise
Walking , cycling , swimming , rowing
Advice
Stop smoking and also avoid second hand smoke
Drink plenty of water to avoid build up of mucus
TestsĀ
Sputum culture
HRCT chest