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C. Joan M. Cwiklinski, a nurse practitioner at the Medical College of Wisconsin, explains how the LED treatment is administered.

Transcript: "This is a demonstration of the NASA LEDs that we use to treat children who've been treated with chemotherapy and radiation for cancer. It does leave bad sores in their mouths. The growth is called mucositis. With this treatment, it's easy and painless. We use the light and hold it up to the cheek. It's non-invasive; it doesn't burn; it doesn't hurt; and it's very quick. It's a minute and 11 seconds, and that's it."

Dr. Harry Whelan, professor of pediatric neurology at the Medical College of Wisconsin in Milwaukee, talks about his research using light-emitting diodes to heal wounds.

Transcript: "Cancer treatment can have serious complications, one of which is called mucositis. We previously were able to demonstrate benefits of NASA LED technology over laser technology in treatment of cancer. We've now been able to apply it to the prevention of cancer complications."

Dr. David Margolis, an oncologist at Children’s Hospital of Wisconsin in Milwaukee, talks about how his patients have benefited from the LED treatments.

Transcript: "The LED appears to be a very easy way to improve mouth care, the mouth healing, in our bone marrow transplant patients. Our patients traditionally get very bad mouth sores and [have] difficulty swallowing. The LED appears to be decreasing the amount of mouth inflammation that we see, so there's better mouth healing. Patients are able to eat who I would never have anticipated being able to eat or drink during transplant. This improves nutrition. There's less pain in the mouth, so the patients are requiring less pain medication."