Which cough medicines really work? When you have a cough and you can't get rid of it, the choices at the pharmacy might seem overwhelming. Some meds are only available with a prescription; others ...
While searching for the best cough medicine, you will find several over-the-counter (OTC) cough suppressants that contain the drugs dextromethorpan or diphenhydramine. For more severe coughs ...
The diagnosis: cough due to pressure on the laryngeal nerve. The standard cough suppressants—syrup, steam inhalations, potassium iodide, codeine and various barbiturates—had no effect.