And as dr. tu said , contact lenses carry risks as well , including the possibliity of serious infections .
屠医生也说，戴隐形眼镜也有风险，如可能会发生严重的感染。
Tu discovered a passage in the handbook of prescriptions for emergencies ( 340 ce ) by ge hong that referenced qinghao 's malaria-healing capacity . It said " take a handful of qinghao , soak in two liters of water , strain the liquid , and drink . "
