Abstract:Objective To investigate the efficacy and safety of nystatin combined with antimicrobial photodynamic therapy on oral candidiasis.Methods We selected 86 patients with oral candidiasis who were admitted to our department from March 2018 to April 2020, and they were randomly divided into two groups. The control group received 500,000 u of oral nystatin each time, 3 times a day. On the basis of the control groups, the research group was treated with antimicrobial photodynamic therapy which was performed every 24 hours for 1 week. The clinical efficacy, safety, the Candida count before and after the treatment, and the recurrence rate were compared between the groups.Results The overall effective rate was higher in the research group relative to the control group (P < 0.05). There was no difference in the Candida count between the two groups before treatment (P > 0.05). After treatment, the Candida count was lower in the research group (P < 0.05), though the Candida count after treatment was decreased in both groups compared with that prior to the treatment (P < 0.05). The recurrence rate of the research group was lower than that of the control group (P < 0.05). Additionally, there was no difference in the incidence of adverse reactions between the two groups during the treatment (P > 0.05).Conclusions Nystatin combined with antimicrobial photodynamic therapy is effective and safe in treating patients with oral candidiasis, by reducing the recurrence rate and the Candida count.