Pain Management Smartphone Application for Patients With Stage III-IV Head and Neck Cancer Undergoing Radiation Therapy

This pilot clinical trial studies a pain management smartphone application for monitoring pain in patients with locally advanced head and neck cancer who are undergoing radiation therapy. The study is also open to patients with esophageal or lung cancer. A smartphone application may allow patients to assess their symptoms in a manner that is closer to real-time than having to recall pain episodes during once weekly on-treatment visits with a health care provider. This real-time monitoring may improve the timing and efficacy of interventions leading to better pain-control and quality of life.