Teach the patient the following strategies to limit infections: avoid crowds; avoid infected visitors, particularly children with colds; wash hands frequently; when an infection occurs, report it to a physician immediately; avoid direct contact with pets to limit the risk of infections from licks, scratches, or bites; do not change the cat litter or clean a birdcage.

Maintain a high-calorie and high-protein diet. Take sips of grapefruit juice, orange juice, or ginger ale if nausea persists. Drink at least 2,000 mL of fluid a day unless on fluid restriction.

Perform frequent mouth care with a soft toothbrush and avoid commercial mouthwashes. Contact support groups, the American or Canadian Cancer Society, or counselors as needed.