When administered to bedsore model mice to examine the bedsore-relieving effect, an Enterococcus faecalis strain (EC-12 strain), which is an example of lactic acid bacteria, exhibited a significant effect of relieving bedsore from the early stage after the formation of the bedsore in the mice. Thus, it is clarified that the Enterococcus faecalis strain (EC-12 strain) is very advantageously usable in drugs, foods and drinks for preventing bedsore or healing the same at the early stage.於本發明中,使褥瘡之小鼠模型攝取作為乳酸菌之一例之糞腸球菌(EC-12株),對其褥瘡改善作用進行研究,結果於該小鼠模型中,自褥瘡形成後早期開始便確認到褥瘡之明顯改善。本發明發現,糞腸球菌(EC-12株)作為用於褥瘡之預防或早期階段之治癒的醫藥或飲食品極其有用。