Zhè / dào / shāng / kǒu / yǐ / jīng / liú / nóng / le / bù / néng / zài / yòng / shǒu / chù / pèng

这道伤口已经流脓了，不能再用手触碰。

This wound is already discharging pus, so it must not be touched with your hands anymore.