A nurse is reinforcing teaching with a client who has stomatitis. Which of the following instructions should the nurse include in the teaching?

A. Rinse the mouth with an alcohol-based mouthwash: Alcohol-based mouthwashes are irritating and can exacerbate oral pain in clients with stomatitis. They should be avoided to prevent further mucosal damage. B. Eat foods high in vitamin B12: While vitamin B12 is important for overall health, consuming foods high in B12 does not specifically relieve stomatitis symptoms. Nutritional support should focus on tolerable foods rather than specific vitamins. C. Use lemon glycerin swabs: Lemon and glycerin are acidic and can further irritate oral mucosa. Their use can worsen pain and delay healing in clients with stomatitis. D. Consume soft, bland foods: Soft, bland foods minimize trauma to inflamed oral tissues and reduce discomfort during eating. This dietary approach supports adequate nutrition while allowing the mucosa to heal.