Is there a way to use "find/replace" ( or some alternate) to find italics words, or some other formatted word, such as 14 pt. formatted words? I have often had to manually search through a document to change the size of italics to a larger font in order to make it more readable.

This is usually a large document that someone else has produce and they made the italics words smaller than the non-italics. This is just one example of needing to search for all occurrences of some particular format and replacing with another format.