fomentation

nouns

a substance used as a warm moist medicinal compress or poultice

is made of

a cloth pad or dressing (with or without medication) applied firmly to some part of the body (to relieve discomfort or reduce fever)

is a type of (narrower)

a particular kind or species of matter with uniform properties

"shigella is one of the most toxic substances known to man"

application of warm wet coverings to a part of the body to relieve pain and inflammation

fomentation

is derived from

is a type of (narrower)

care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)

deliberate and intentional triggering (of trouble or discord)

fomentation, instigation

is derived from