Fascinating to read these “home remedies” from so long ago.
And then, there is a story:
Rabina visited R. Ashi (on the Sabbath): He saw that an ass had trodden on his foot, and he was sitting and reducing the swelling in vinegar. Said he to him, “Do you not accept R. Hillel's statement ‘Not vinegar’?”
“[A swelling on] the hand or on the foot is different,” he replied, “for R. Adda b. Mattenah said in Rab's name, [A blow on] the hand or on the foot is like an internal wound, and the Sabbath may be desecrated on its account.”
“Healing” is not permitted on the Sabbath, but saving a life – of course – is.