poultice vs unguent

poultice

noun
  • A soft, moist mass, usually wrapped in cloth and warmed, that is applied topically to a sore, aching or lesioned part of the body to soothe it. 

  • A porous solid filled with solvent, used to remove stains from porous stone such as marble or granite. 

verb
  • To treat with a poultice. 

unguent

noun
  • Any cream containing medicinal ingredients applied to the skin for therapeutic purposes. 

How often have the words poultice and unguent occurred in a corpus of books? (source: Google Ngram Viewer )