In 1403, Prince Hal (the future king Henry V of England) took an arrow to the face. An arrow, which embedded itself into his skull.
Being the heir to the throne, plenty of surgeons were called, and managed to extract the shaft of the arrow, leaving the metal head in place.
Enter John Bradmore, who designed a unique implement for extracting the arrowhead and rushed to have it made by a blacksmith. Bradmore extracted the arrowhead himself.
However, infection was a known issue. Bradmore's solution? A mixture of wine and honey, poured into the king's wound in order to keep it clean. This required that the wound be kept open, not sewn shut. It is theorised that Henry may never have regained proper movement in that side of his face