What medicine to take for a dry cough?

None work great. There is no great medicine for this. Over the counter preparations may help but are mostly snake oil. Honey and lemon tastes good and is benign and may help. If you are a smoker stop. Inhalers may help if there is a reactive component to it.
Better c ur doctor . Dry cough can be a symptom for several disorders, and if OTC medications aren't helping , better see your doctor, good luck.

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