For oral mucositis from chemotherapy/radiation, which is an appropriate measure?

Correct answer: A. Bland chlorhexidine mouth rinse

• A. Best of the options. Antimicrobial chlorhexidine rinses are commonly used as part of oral care; bland rinses (saline/sodium bicarbonate) are also favored. The aim is gentle, non-irritating oral hygiene.
• B. Incorrect. There is no routine indication to swap chlorhexidine for povidone-iodine; it is not a standard substitution for mucositis.
• C. Incorrect. Alcohol-based rinses are drying and irritating and should be AVOIDED in mucositis.

Note: Evidence supports basic oral care and avoiding irritants; protocols vary, and bland saline/bicarbonate rinses are widely recommended.