I would have this done.
If this is done and rules out a lung problem.
And if no allergies show up on testing and this does not respond to allergy treatment, then GERD or acid reflux has to be considered.
This can be a cause of chronic cough even with no other symptoms.
Ph monitoring of the esophagus by a gastroenterologist would confirm this.
A 2 to 4 week trial of a drug such as nexium would be another way of testing this.
An h pylori breath test should be done to rule out this bug as well, which can cause ulcers and gastritis.
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