The instruction of Okuninushi gave to 'wash in the fresh water at the mouth of the river' means that near the mouth of a river there is an area of brackish water, so that the water there can be said to resemble physiological salinity, and the tips of cattails are known as hou in Chinese medicine for their hemostatic effect in, and it can be considered reasonable for treating wounds.
大国主の指示である「河口の真水で洗え」とは河口付近は汽水域であり生理食塩水に近いといえ、また蒲の穂は漢方で蒲黄として知られる止血効果があり、創傷治療に対して合理的といえる。