Breathe Easy with Doctor-Recommended Bronchial Soothe. Ivy leaf extract is a traditional ingredient that has been used for centuries to support bronchial health. The exclusive ivy extract in Bronchial Soothe provides natural support for optimal lung and bronchial passageway health. Unlike alcohol-based syrups the natural ingredients in Bronchial Soothe provide greater levels of safety.Other products from HerbsPro