A Frontal with Mastic.
Take powder'd Mastic, Frankincense, each 2 drams; white Chalk, Bean Meal, each half an ounce; white of Egg well beaten, Oil of Roses, each 6 drams; Vinegar as much as needs to make it fit for spreading on a Cloth.
Its to be used when the Eyes are afflicted with Rheumes, and that for prevention as well as Cure. For it sticks very fast, compresses and constringes the little Tubuli, and internal Passages, and so hinders the deflux of Humours. For you must know, that the parts about the Eyes are so constituted, both by their spongy Fabric and declivous Situation, as to be apt to receive whatever Humor flows down from either the Pericranium or Neighbouring Muscles.
Yea (which tho' it be wonderfull, yet) its not unusual for a blow upon the Head to settle down into a Black Eye.
Pharmacopeia Extemporanea 1710