Dealing With Dry Mouth During Radiation Therapy

Radiation therapy to the head and neck can directly damage the salivary glands as well as the mouth, throat, and lips. Symptoms can range from mild to debilitating and include:

a dry, sticky feeling in the mouth
saliva that is thick or stringy
a painful, burning sensation in the mouth or tongue
difficulty chewing or swallowing
change in taste
difficulty talking

In addition to the physical discomfort, dry mouth can interfere with both your dental health and your ability to eat (leading to infection and/or malnutrition).

Fortunately, most people with dry mouth will regain salivary function in the weeks following radiation therapy, although it can sometimes take months.

Before Starting Treatment
Before radiation therapy begins, make an appointment with your dentist to get a thorough cleaning and check-up. Let your dentist know that you’re undergoing cancer treatment and ask that he or she check for any sores or infections that might work. If you have any pain or sensitivity during the examination, let your dentist know.

It is important to start practising good dental hygiene if you haven’t done so already. Gently brush your teeth, gums, and tongue after eating and before you go to bed, flossing carefully as not to cause any cuts or abrasions. If you choose, you can rinse with a solution of warm water, baking soda, and salt.

And, most importantly, always use a soft toothbrush and never over brush.

10 Tips for Dealing With Dry Mouth During Radiation Therapy
While dry mouth may not be entirely avoidable during radiation treatment, there are 10 simple things that may alleviate symptoms:

Stay well hydrated by carrying water with you at all times, and sipping frequently.
Choose foods that are soft and easy to swallow. Make milkshakes or blended food if you have difficulty swallowing.
Chew sugarless gum to encourage saliva production. Avoid gum with sugar as the lack of saliva may increase the risk of cavities.
Use numbing sprays to make eating less painful. Ask your healthcare provider about suitable over-the-counter products.
Avoid foods that are crunchy, salty, spicy, or sugary.
Avoid caffeine and alcohol as they can act as a diuretics, promoting urination and leading to dehydration.
Do not smoke or use tobacco products (including chewing tobacco).
If you experience any changes in taste, try cold foods or iced smoothies which are often more palatable and easy to eat.
Try sipping through a straw if drinking from a cup becomes difficult.
Use a humidifier in your home and especially in your bedroom.
Your dentist will want you to maintain regular visits during radiation therapy in order to check for any changes that may be developing as a result of the treatment.

There are also several over-the-counter products like mouthwashes, toothpaste, and oral sprays to assist with saliva production and reduce the risk of bacterial or other types of oral infection.