Abstract：Objective To explore the application effect of Dexamethasone Injection in patients with respiratory tract infection.Methods A total of 120 patients with respiratory tract infection admitted to our hospital from May 2016 to May 2018 were selected as study subjects，and divided into the treatment group （60 cases）and the control group （60 cases）according to different treatment methods.Symptomatic treatment combined with Dexamethasone Injection was used in the treatment group，while the control group was only treated with simple control.Temperature recovery，adverse reactions，and quality of life SF-36 scores were compared between the two groups.Results The temperature recovery time and treatment time of the treatment group were shorter than those of the control group，and the differences were statistically significant（P＜0.05）.The total incidence rate of adverse reaction of the treatment group was higher than that of the control group，and the difference was statistically significant （P＜0.05）.Quality of life SF-36 score in the treatment group after treatment was higher than that in the control group，the difference was statistically significant （P＜0.05）.Conclusion Dexamethasone Injection can accelerate the recovery of body temperature and improve the quality of life in patients with respiratory tract infection.However，it is worth noting that the adverse reaction rate is relatively high and it is recommended to be used cautiously.
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