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Together is a new resource for anyone affected by pediatric cancer - patients and their parents, family members, and friends.
Learn MoreLight therapy, or photobiomodulation, is the use of low-level laser and LED light to prevent or treat oral mucositis. Light therapy can decrease swelling, reduce pain, and promote tissue healing.
Mucositis is swelling and irritation of the lining of the digestive system. This condition can be caused by cancer treatments including chemotherapy and radiation. Oral mucositis, sometimes called stomatitis, is irritation and sores (ulcers) that occur in the lining of the mouth including cheeks, gums, lips, or tongue.
Learn more about mouth and throat sores.
Sores in the mouth and throat are a common side effect of cancer treatment. Certain treatments have a higher risk of mucositis. These include radiation therapy, stem cell (bone marrow) transplant, and certain chemotherapy medicines.
Mucositis can cause pain and make it hard for patients to eat or drink. In some cases, this can result in dehydration and weight loss and increase your child’s risk for gastrointestinal tube placement (feeding tube). Mucositis can also increase the risk of infection and hospitalization.
Light therapy for oral mucositis is quick and painless. The goal is to reduce swelling and discomfort and promote tissue healing. In some cases, your care team may recommend light therapy to help prevent mouth and throat sores before they develop.
Your care team will do an exam of your child’s mouth and throat before the start of light therapy. They will also ask about your child’s pain and their ability to eat and drink.
The care team will grade the oral mucositis on a scale of 1 to 4. Grade 1 is mild, and Grade 4 is most severe. The grade will help guide the treatment.
These exams will be done regularly to track oral mucositis over time and see how well the therapy is working.
Light therapy is easy to apply and can be done in your child’s hospital room or in an outpatient setting. A trained health care provider will do the treatment. Light therapy may be done up to 5 times a week.
Light therapy uses a painless low-level laser and LED light that applies red light to areas of tissue.
Your care team will plan the treatments and let you know what to expect.
Your child can eat and drink as usual after light therapy. Follow your care team’s instructions for mouth care.
There are no major risks associated with the light therapy. The treatment is quick and painless.
There is a very small risk of irritation caused by the light. Your child will be given glasses to wear during treatment to make sure the light does not bother their eyes.
It is not always possible to prevent mouth and throat sores. Ways to help manage oral mucositis include:
Let your care team know if your symptoms get worse or do not improve.
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Reviewed: February 2024
Mouth and throat sores are a common side effect of cancer treatment in children. The clinical name for this condition is oral mucositis.
Mouth sores, dry lips or mouth, and tooth problems are common in children with cancer and other illnesses. Learn about mouth care and oral health.
Side effects are health problems that result from cancer treatments. Your care team will work with you to help manage your child’s side effects.