Expectorants are medications that help clear mucus from the airways, making it easier to breathe. They work by thinning and loosening mucus in the lungs, which can be particularly helpful during respiratory infections or conditions like bronchitis and asthma. Common expectorants include guaifenesin, often found in over-the-counter cough syrups. These medications are typically used to relieve coughs associated with colds or allergies. While expectorants can be effective, it's important to stay hydrated, as fluids can further assist in thinning mucus. Always consult a healthcare professional before using expectorants, especially for children or if you have underlying health issues.