Oral mucositis is a common complication in pediatric oncology patients after chemotherapy and radio-therapy treatments,which is characterized by high incidence and tricky prevention and treatment.In recent years,scholars have conducted clinical studies on the safety and efficacy of some methods to prevent and treat oral mucosi-tis in children,such as palifermin,laser,photodynamic therapy,cryotherapy,supersaturated calcium phosphate,chlorhexidine,mucosamin spray,polaprezinc zinc-L-carnosine,honey,and vitamin E.This paper presents a review of clinical studies on the prevention and treatment of o...