Some cancer treatments can cause a sore or dry mouth, please see below for more information on how to look after your mouth after treatment

How to cope with mouth problems caused by cancer treatment | Macmillan Cancer Support

Dry mouth | Head and neck cancer | Macmillan Cancer Support

Mouth ulcers

Mouth ulcers (a key component of oral mucositis) are often resolved soon after a course of treatment, but for some patients, particularly after high dose chemotherapy and radiotherapy, chronic or recurring ulcers and oral pain can last for months or years.

Being prone to mouth ulcers after cancer treatment could be related to a number of causes:

• Food allergy or intolerance, new or spicy foods
• Stress or anxiety
• Hormonal changes
• Vitamin deficiency
• A side effect of some medications
• A weakened immune system
• Dry mouth or changes to the mouth lining
• Radiotherapy sensitivity
• Oral thrush

Please see below for more information and consult your GP for management.

Mouth ulcers - NHS

Swallowing 

Swallowing issues (dysphagia) after cancer treatment—common with head, neck, or esophagus cancers—result from surgery, radiotherapy, or chemotherapy causing tissue damage, muscle stiffness, or dry mouth. While often temporary, these issues can be long-term.

If you are having difficulty with swallowing, please see your GP

For further information please see the links below

Difficulty swallowing (dysphagia) | Cancer Research UK