Decision-making often requires individuals to evaluate information from multiple sources, including expert opinions and recommendations. However, when experts provide conflicting advice, individuals may experience uncertainty, reduced trust, and difficulty developing confidence in their final decisions. Decision confidence refers to an individual\\\'s perception of how accurate, reliable, and appropriate their chosen decision is. This review research article examines how exposure to conflicting expert recommendations influences decision confidence through an analysis of existing theoretical and empirical literature. This review integrates findings from cognitive psychology, behavioural decision science, information processing research, and trust-based decision frameworks to understand how individuals adjust confidence when faced with contradictory expert opinions. The article examines the role of factors such as perceived expertise, evidence quality, cognitive conflict, uncertainty perception, and individual reasoning styles in shaping decision confidence. The reviewed literature indicates that conflicting recommendations do not influence decision confidence in a single way. The impact depends on how individuals interpret conflicting information, the level of trust they place in experts, and their ability to compare and integrate different sources of evidence. Some individuals may experience reduced confidence due to increased uncertainty, while others may engage in more detailed evaluation and develop better-calibrated decisions. This review contributes to decision-making research by connecting perspectives from expert communication, cognitive conflict, and confidence calibration. The findings provide theoretical insights into how information environments may be designed to help individuals evaluate conflicting recommendations and make informed decisions under uncertain conditions.