irritation vs paresthesia

irritation

noun
  • A condition of morbid excitability or oversensitiveness of an organ or part of the body; a state in which the application of ordinary stimuli produces pain or excessive or vitiated action. 

  • A things or person that annoys 

  • The state of being irritated 

  • The act of irritating or annoying 

  • a state of inflammation or painful reaction to allergy or cell-lining damage. 

paresthesia

noun
  • A sensation of burning, prickling, itching, or tingling of the skin, with no obvious cause. 

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