shǐ / yòng / liàn / méi / sù / yǐ / qián / huàn / zhě / xū / yào / xiān / gào / sù / yī / shēng / zì / jǐ / de / guò / mǐn / shǐ使用链霉素以前,患者需要先告诉医生自己的过敏史。Before using streptomycin, patients need to tell the doctor about their allergy history.