Expectorants are medicines that thin mucus to help make coughing easier. Guaifenesin is the most common expectorant and is found in products like Mucinex and Robitussin. Drink lots of water when ...

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The type of cough medicine you need depends on whether your cough is dry or wet. Dextromethorphan is best for dry coughs, while guaifenesin is good for wet coughs. Check product labels to avoid ...