Remember, coughing is your body's way of driving out the infection and keeping your breathing passages clear. The best cough remedies for bronchitis contain guaifenesin, which helps bring up sputum. But if you're at the end of your rope and can't bear another minute of hacking, especially if it's been keeping you from getting the sleep you need to recover, you can try a medicine that contains the cough suppressant dextromethorphan. Take it only as often as absolutely needed. Check with your doctor if you're unsure. Combination products should generally be avoided; decongestants, antihistamines, and alcohol (common ingredients in combination products) have no role in the treatment of coughs and may even increase discomfort by causing side effects. Most of the candy-type cough drops act as demulcents on the throat; in other words, their soothing properties are due largely to their sugar content.