What Causes Oral Thrush
Candida albicans normally inhabits oral cavities in controlled numbers. Conditions favoring candida proliferation include antibiotic use eliminating competing bacteria, immunosuppression reducing immune control, and local moisture or irritation.
Oral thrush manifests as white patches on tongue, cheeks, palate, or throat. Affected areas appear red and inflamed beneath white coating. The patches don't wipe away easily, distinguishing thrush from other causes of oral white lesions.
Risk Factors
Antibiotic therapy dramatically increases thrush risk by eliminating protective oral bacteria that inhibit candida growth. This antibiotic-associated thrush typically resolves with candida treatment.
Inhaled corticosteroids for asthma increase thrush incidence significantly. Rinsing mouth thoroughly after steroid inhaler use prevents local candida overgrowth.
Immunocompromise from HIV infection, chemotherapy, or immunosuppressive medications increases thrush risk substantially. Those with advanced AIDS frequently experience thrush. CD4 count below 50 cells indicates extremely high thrush risk.
Symptoms and Complications
Mild thrush causes minimal symptoms beyond visible white patches. More extensive infection produces burning, soreness, and altered taste sensation. Difficulty swallowing indicates esophageal involvement requiring aggressive treatment.
Patients may report cotton-mouth sensation or altered taste. Severe infections interfere with eating and adequate nutrition, warranting prompt treatment.
Treatment Approaches
Topical antifungal treatments including nystatin rinses or clotrimazole lozenges effectively treat localized oral thrush. Treatment typically continues for 7-14 days after symptom resolution to ensure complete eradication.
Oral fluconazole treats more extensive infections and esophageal involvement. Systemic treatment achieves better results than topical therapy for deeper mucosal infections. Treatment duration extends 2-3 weeks or longer for immunocompromised individuals.
Prevention Strategies
Rinse mouth after antibiotic administration to mechanically remove candida organisms. Steroid inhaler users should rinse thoroughly after each use to prevent local candida overgrowth.
Maintaining good oral hygiene through regular brushing and flossing supports normal protective flora. Limiting sugar consumption reduces candida nutrient availability.