Bronchitis is the inflammation of the tubes leading to the lungs, often marked by cough and thick mucus production. Natural remedies for bronchitis include quitting smoking, avoiding irritants, resting, staying hydrated, using steam inhalation, losing weight, exercising, washing hands frequently, using aromatherapy, and consulting a homeopath. Supplements like probiotics, NAC, echinacea, andrographis, garlic, ginseng, lobelia, mullein, and peppermint may also help prevent or reduce bronchitis symptoms.