Treatment of Angular Stomatitis with Topical Antimicrobial Therapy

Initial Treatment Approach

• The American Dental Association recommends applying topical antifungal agents as primary treatment, specifically nystatin oral suspension or miconazole oral gel to the affected corners of the mouth, for patients with angular stomatitis 1, 2
• Maintaining good oral hygiene with non-alcoholic mouthwashes is crucial to prevent secondary bacterial colonization in patients with angular stomatitis 2, 3

Supportive Care

• The American College of Physicians suggests using sodium bicarbonate rinses (1 teaspoon table salt mixed with three-quarter teaspoon baking soda in 500 ml water) 4-6 times daily to maintain oral pH and reduce microbial load in patients with angular stomatitis 3, 4
• Evaluating and adjusting dental appliances (dentures, braces, retainers) that may be contributing to moisture accumulation and maceration at the oral commissures is recommended for patients with angular stomatitis 3, 5

Treatment of Moderate to Severe Cases

• The Infectious Diseases Society of America recommends considering combination antifungal and antibacterial therapy if secondary bacterial infection is suspected in patients with angular stomatitis 6
• Adding antiseptic oral rinses such as 0.2% chlorhexidine digluconate mouthwash twice daily may be necessary for patients with moderate to severe angular stomatitis 6
• Topical corticosteroids may be considered if significant inflammation is present, but only after ensuring adequate antimicrobial coverage in patients with angular stomatitis 4

Management of Underlying Conditions

• The American Academy of Oral Medicine suggests assessing for oral dryness and considering salivary substitutes or sialogogues if xerostomia is contributing to angular stomatitis 4