Your air ways contain tiny glands that produce a small quantity of mucus. Natural Remedies for Bronchiectasis, Mucus helps to keep your airways moist, and tricks the dust and germs that you breathe in. The coating is moved away by tiny hairs, named cilia, which line your airways. If you have bronchiectasis, your airways are broadened and inflamed with thick mucus, also called mucus or sputum.