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Managing Chemotherapy Side Effects
Mouth and Throat Changes
< Back to Chemotherapy Fact Sheets
    Posted: 11/24/2008
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Mouth and Throat Changes

"My mouth felt sore. I let my nurse know right away. He told me about medicine that can help. He also showed me how to make a mouth rinse to use each day."
To order free copies of this fact sheet, please call
1-800-422-6237 (1-800-4-CANCER).

Tell your doctor or nurse if you have:

  • Changes in taste or smell

  • Dry mouth

  • Pain when you eat hot or cold foods

Call your doctor or nurse if you have:

  • Trouble eating or swallowing

  • White spots in your mouth

  • Sores on your lips or in your mouth

Take these steps to feel better.

Clean your mouth with care.

  • Brush your teeth and tongue after each meal and before you go to bed. Use a very soft toothbrush.

  • Use toothpaste or gel that has fluoride and baking soda in it.

  • Rinse your mouth with the baking soda, salt, and water mix in the box below.

Every 3 hours during the day, mix together:

  • 1 cup warm water,

  • 1/4 teaspoon baking soda, and

  • 1/8 teaspoon salt.

Take small sips and swish them around in your mouth.


Keep your mouth and lips moist.

  • Use a lip balm, such as ChapStick®.

  • Sip water or suck ice chips.

  • Try drinking through a straw.

Eat soft, bland foods.

  • Choose foods that are soft, wet, and easy to swallow.
    When your mouth is sore, try cooked cereals, mashed potatoes, and scrambled eggs.

  • Soften food with gravy, sauce, or other liquids.

  • Let food cool down if hot food hurts your mouth.

Don't have things that can make your mouth hurt.

  • Don't drink orange, lemon, tomato, or grapefruit juice.

  • Don't drink alcohol, such as beer or wine.

  • Don't eat crunchy or spicy foods.

  • Don't have foods or drinks that have sugar in them, such as candy and soft drinks.

  • Don't smoke cigarettes or use other tobacco products.

Ask about medicine for pain if your mouth or throat is sore.

Questions to ask your doctor or nurse:

  1. What problems should I call you about?

  2. What foods and drinks should I have?

  3. Can we make the baking soda, salt, and water mix together?

  4. If brushing hurts, what are other ways that I can clean my mouth?

  5. What medicines can help?

Visit a dentist at least 2 weeks before you start treatment. Get a copy of the report from your dentist and give it to your doctor or nurse.


Free Services to Learn More
National Cancer Institute
Cancer Information Service
Phone: 1-800-4-CANCER (1-800-422-6237)
TTY: 1-800-332-8615
Chat Online:www.cancer.gov/help

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