shǐ / yòng / qìng / dà / méi / sù / qián / bì / xū / xiān / què / rèn / huàn / zhě / méi / yǒu / xiāng / guān / guò / mǐn / shǐ使用庆大霉素前,必须先确认患者没有相关过敏史。Before using gentamicin, it is necessary to confirm that the patient has no relevant history of allergies.