A day at the spa can induce tranguility. In the novel,Macbeth, Lady Macbeth induced Macbeth to kill the king. A bribe of some sort is probably the most common inducement used to motivate a person. Some prescription drugs are used as an inducement to encourage delivery during labor.
Even though they have yet to determine what is the cause of Granuloma Faciale, they have not found any connection between it and any type of drug inducement. Granulmoa Facial is a rare form with no known primary cause or cure, but continues to be studied and researched by many professionals.
"Undue" means excessive. "Inducement" means some form of persuasion, usually of a positive ("If you do this, good things will happen") rather than a negative ("If you do not do this, bad things will happen") nature.