Inclusion criteria:
the minimum age of 18 years, presence of head and neck cancer, radiation dose of 50-70 Gy, at least 50% of patient’s oral cavity in the field of radiation and patient satisfaction.
Exclusion criteria:
previous history of radiation therapy, patient dissatisfaction, history of allergy to turmeric, , in case of any oral lesions or complication resulting from radiation therapy other than candidiasis and mucositis, use of systemic or topical antifungal drugs for any reason, pregnancy or breastfeeding periods in women under treatment, presence of local and systemic conditions predisposing for candidiasis, such as the application of inhaled and topical steroids, presence of hyperkeratosis, use of immunosuppressive drugs, history of systemic antibiotic usage over the previous 2 weeks, the presence of CFU above 400/ml in the first culture or clinical evidence based on the presence of oral candidiasis.