itch vs tickling

itch

noun
  • A sensation felt on an area of the skin that causes a person or animal to want to scratch said area. 

  • A constant teasing desire or want. 

verb
  • To scratch or rub so as to relieve an itch. 

  • To feel itchy; to feel a need to be scratched. 

  • To cause to feel an itch. 

  • To have a constant, teasing urge; to feel strongly motivated; to want or desire something. 

tickling

noun
  • A sensation that tickles. 

  • The act by which someone is tickled. 

adj
  • That tickles 

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