Kiss the Place to make it Well
A relic of a very common custom all over the world of sucking
poison from wounds. St. Martin of Tours, when he was at Paris, observed
at the city gates a leper full of sores; and, going up to him, he
kissed the sores, whereupon the lepef was instantly made whole (Sulpicius Scverus: Dialogues. Again, when St. Mayeul had committed
some grave offence, he was sent, by way of penance, to kiss a leper who
was begging alms at the monastery. St. Mayeul went up to the man,
kissed his wounds, and the leprosy left him. Half a score similar
examples may be found in the Bollandistes, without much searching.
Who ran to help me when I fell,
And kissed the place to make it well?
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894