A member asked:

I have had a cough for a year, have been tested for asthma and i don't have it. there is no infection and i regularly lose my voice what could it be?

2 doctors weighed in across 2 answers

Complex: The three most common causes of cough are asthma, esophageal reflux or gerd, and sinus issues. You should review all your medications with your doctor for side effects. If you have not had a ct scan of the chest i would do one even if your X-ray is normal. Infections like mai are possible. I normally also include a battery of tests for allergy and rheumatologic disorders.

Answered 9/28/2016

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Dr. Brian Novick answered

Specializes in Allergy and Immunology

Few possibilities: First i would be sure you had " complete pfts. " including methacholine challenge .If that has all been done, gastric reflux is a possibility ..As is chronic rhinosinusitis causing postnasal drip---> coughing. I would also have full allergy skin testing and if all that had been done --maybe upper endoscopy.

Answered 3/5/2013

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