Management of Non-Healing Oral Lesions

Diagnosis and Initial Assessment

The American Academy of Oral Medicine mandates biopsy for any oral lesion persisting beyond 2 weeks, especially without response to 1-2 weeks of symptomatic treatment, to exclude malignancy, particularly squamous cell carcinoma 1
A complete blood count should be obtained to exclude anemia, leukemia, and neutropenia, and blood coagulation studies to rule out surgical contraindications 1
Fasting blood glucose should be checked to identify diabetes, a major risk factor for invasive fungal infection and poor wound healing 1
HIV antibody and syphilis serology should be performed to exclude infectious causes 1
A complete oral cavity examination, including all mucosal surfaces, floor of mouth, and oropharynx, should be performed to identify synchronous lesions, and the lesion's size, location, borders, color, and presence of induration or lymphadenopathy should be documented 1, 2

Topical pain control can be achieved with benzydamine hydrochloride oral rinse every 3 hours, particularly before eating, or viscous lidocaine 2% up to 3-4 times daily for severe pain 3, 4
A mucoprotectant gel, such as Gelclair, can be applied three times daily to form a protective barrier over the ulcer 3, 4
Oral hygiene and infection prevention can be maintained with warm saline mouthwashes and 0.2% chlorhexidine digluconate mouthwash twice daily as antiseptic rinse 3, 4
Dietary modifications, such as avoiding crunchy, spicy, acidic foods, hot beverages, alcohol, and tobacco, can help manage symptoms 3, 5

For squamous cell carcinoma, immediate referral to a head and neck surgeon or oral maxillofacial surgeon is recommended, along with contrast-enhanced CT or MRI to assess tumor extent and lymph node involvement, and chest imaging to assess for metastases or second primary lung cancer in smokers 2
For oral tuberculosis, four-drug anti-tuberculous therapy, including isoniazid, rifampicin, pyrazinamide, and ethambutol, is recommended 1
For NK/T-cell lymphoma, hematology-oncology referral for systemic chemotherapy is necessary 1
For candidal infection, nystatin oral suspension or miconazole oral gel can be used for treatment 3
For aphthous ulcers with a confirmed benign etiology, betamethasone sodium phosphate or clobetasol 0.05% ointment can be used for treatment, and tacrolimus 0.1% ointment can be used for refractory cases 3

Never assume a small or benign-appearing lesion is non-malignant, as squamous cell carcinoma can present deceptively as small white ulcerative lesions, and do not delay biopsy beyond 2 weeks for any persistent ulcer 1
Do not overlook systemic disease associations, such as Crohn's disease, Behçet's disease, hematologic malignancies, or immunosuppression, and always inquire about constitutional symptoms, gastrointestinal symptoms, and immunosuppression history 1, 3
Hyperglycemia is a critical predisposing factor for invasive fungal infections presenting as oral ulcers, and high suspicion for both malignancy and opportunistic infections should be maintained in patients with diabetes or smoking history 1, 2, 3