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This paper explores the neuropsychiatric consequences of SARS-CoV-2 (COVID-19) infection, specifically the use of intravenous immunoglobulin (IVIG) therapy in treating central nervous system (CNS) symptoms associated with COVID-19. The authors searched PubMed and Google Scholar using the keywords "IVIG" and "covid-19 neuropsychiatric symptoms" to find five articles, including three case reports, a retrospective study, and a prospective study, that detail the experiences of individuals with persistent neuropsychiatric symptoms after contracting COVID-19. The neuropsychiatric symptoms reported in the analyzed studies include sleep disturbance, exhaustion, cognitive decline, anxiety, and others. Common treatments for post-COVID neuropsychiatric symptoms include medications, cognitive behavioral therapy, and lifestyle modifications. IVIG therapy to manage CNS symptoms of COVID-19 has shown mixed results in studies, with some showing positive effects while others remain inconclusive. Further research is needed to understand this therapy's potential benefits and limitations fully.