Reducing the pain and fear experienced by children during IM injections, one of the painful procedures commonly seen in emergency departments, is an important midwifery/nursing intervention. The authority of midwives and nurses to use non-pharmacological methods in IM injection administration, which is the most frequent procedure they perform, is expressed in the competency regulations of midwives and nurses. Considering the nature of pediatric emergency units, midwives/nurses increase the comfort of children and even parents by using practical, fast-acting, and low-cost methods that can be easily applied in such painful procedures. To reduce pain and fear during IM injections in children, it is important to both contribute to the literature on the positive effects of non-pharmacological methods in different age groups and to make the use of evidence-based low-cost practices a culture in the units we work in. The aim of the study is to investigate the effects of Buzzy® and HSTT on the pain and fear experienced by children aged 4-6 years during IM injections in pediatric emergency departments.