Objective: To investigate the therapeutic properties of local Thai herbs and ingredients, assess the scientific evidence on Thai traditional medicine, explore the cultural significance and traditional knowledge, analyze the potential of Thai herbs in post-pandemic wellness, and examine the role of Thai traditional medicine in medical tourism and its contribution to SDG 3.Material and Methods: This article presents a comprehensive and rigorous critical review of the literature conducted systematically, including thorough data extraction, systematic search, and analysis of relevant studies. Results: The literature review explores the results of various studies on the efficacy and safety of local Thai herbs and ingredients and the potential impacts of medical tourism on sustainability. The review reveals that Thai traditional medicine, incorporating practices, demonstrates promising therapeutic benefits for conditions such as inflammation and respiratory infections. However, challenges exist in terms of standardization and regulation, necessitating further research in order to establish safety and efficacy. While medical tourism benefits Thailand economically, concerns arise regarding social inequalities and environmental impacts. Integrating traditional medicine into medical tourism and adopting sustainable practices can mitigate any adverse effects. These findings highlight the importance of investments in research, education, technology, and sustainable tourism practices that promote traditional medicine, enhance patient care, and position Thailand as a leader in post-pandemic wellness and sustainable development.Conclusion: The discussion emphasizes the need for continued research, education, and regulation in order to promote the integration of traditional medicine into the healthcare system, enhance the safety and efficacy of its practices, and position Thailand as a leader in medical tourism and post-pandemic wellness.