What helps with mouth sores from chemo

Q: What helps with mouth sores from chemo

Mouth sores a condition called mucositis are a common side effect of chemotherapy. Here's what can help: Before treatment starts: - Get a dental checkup and cleaning - Practice excellent oral hygiene with a soft toothbrush - Stay well-hydrated throughout treatment During treatment: - Rinse your mouth frequently with salt water 1/2 teaspoon salt in 8 oz warm water or baking soda rinse - Use a soft-bristled toothbrush or foam swabs instead of regular brushes - Avoid hot foods and drinks—stick to c

LymphomaOctober 2, 2026Navis AI

Ask Navis about your situation

This answer is general. Get one about your specific case. No signup, answered right here.

or Upload your records for answers about your actual case

For informational purposes only

This answer was generated by AI grounded in NCCN guidelines and published medical literature. It is not medical advice. Always consult your oncologist or care team before making treatment decisions.

Sources & medical oversight

Grounded in NCCN Guidelines for Patients (Lymphomas) — the same guidelines oncologists use.
Built by OpenCancer’s team of physician-scientists and cancer survivors.
Last updated October 2, 2026. Informational only — not a substitute for your oncology team.

Managing Mouth Sores from Chemotherapy

Mouth sores (a condition called mucositis) are a common side effect of chemotherapy. Here's what can help:

Prevention & Early Care

Before treatment starts:

Get a dental checkup and cleaning
Practice excellent oral hygiene with a soft toothbrush
Stay well-hydrated throughout treatment

During treatment:

Rinse your mouth frequently with salt water (1/2 teaspoon salt in 8 oz warm water) or baking soda rinse
Use a soft-bristled toothbrush or foam swabs instead of regular brushes
Avoid hot foods and drinks—stick to cool or room-temperature options
Skip spicy, acidic, or rough foods that irritate your mouth

Pain Relief & Healing

Topical treatments your doctor may recommend:

Oral anesthetic gels or rinses (like benzocaine) for temporary pain relief
Antimicrobial mouth rinses to prevent infection
Protective coating agents

Dietary approaches:

Eat soft, bland foods (yogurt, smoothies, mashed potatoes, soup)
Avoid citrus, tomatoes, and spicy foods
Try popsicles or ice chips for soothing relief
Drink plenty of water and nutritious liquids

When to Contact Your Care Team

According to the NCCN Guidelines for Marginal Zone Lymphomas, you should ask your oncology team these important questions about managing side effects:

What are the side effects of treatment? (including mouth sores)
How are these side effects treated?
What side effects should I watch for that could be life-threatening?
When should I call my care team? (especially if sores become severe or infected)
What medicines can I take to prevent or relieve side effects?

Red Flags - Call Your Doctor If:

Sores become severe or prevent you from eating/drinking
You develop signs of infection (increased pain, pus, fever)
Sores don't improve within a few days
You're having difficulty swallowing

Your oncology team can prescribe specific medications tailored to your situation and monitor for complications. Don't wait to report severe mouth sores—they can affect your nutrition and quality of life during treatment.

This information is for educational purposes only. Always consult your healthcare team for personalized medical advice and decisions.

Ask Navis about your case

That answer is general. Ask about your specific situation. No signup, answered right here.

or Upload your records for answers about your actual case

Facing this with someone you love?

Keep the whole picture in one private place: records, a plain-language summary of where things stand, questions, and the people helping. Navis keeps it up to date so no one has to re-explain the story. Free, and only the people you invite can ever see it.

Start a care circle →