fomentation vs spurring on

fomentation

noun
  • A lotion or poultice applied to a diseased or injured part of the body. 

  • Encouragement; excitation; instigation. 

  • The act of fomenting; the application of warm, soft, medicinal substances, as for the purpose of easing pain by relaxing the skin, or of discussing (dispersing) tumours. 

spurring on

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