Evaluation of chronic cough can take time and people may see a healthcare provider many times. Typically, a person starts with a primary care provider, who will begin by taking a complete medical history and physical exam. If the provider is unable to determine the cause of the cough, they may refer the person to a specialist, such as a pulmonologist, an allergist, an ear, nose and throat specialist (ENT), or an esophagus/stomach specialist (gastroenterologist). These specialists may perform additional tests, such as chest x-rays, throat swabs, blood samples and more if needed.