Adam Clarke on Luke 10:34

Pouring in oil and wine - These, beaten together, appear to have been used formerly as a common medicine for fresh wounds. Bind up a fresh cut immediately in a soft rag or lint, moistened with pure olive oil, and the parts will heal by what is called the first intention, and more speedily than by any other means.

An inn - Πανδοχειον, from παν, all, and δεχομαι, I receive; because it receives all comers.