According to the method of random number table, 38 patients with deep second degree facial burn admitted to the Department of burn and plastic surgery of the first people's Hospital of Bijie City from October 2015 to December 2017 were divided into treatment group (20 cases) and control group (18 cases). In the treatment group, the patients were treated with preventive external application of silicone balk ointment after wound healing, and the pressure mask was customized in 2-3W<br>
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