Hot water bottle relieves pain of abdominal spasm by:
Hot water bottle relieves abdominal pain through stimulation of adrenergically activated A delta and C fibres, there by blocking pain impulses transmitted through visceral C fibers. Ref: The Journey to Pain Relief : A Hands-On Guide to Breakthroughs in Pain Treatment By Phyllis Berger, Page 76; The Neurobiology of Pain : Symposium of the Nohern Neurobiology Group, Page 232; The Human Nervous System : Structure and Function By Charles Robe Noback, Page 171.
Stimulation of adrenergic fibers
Stimulation of cholinergic fibers
Inhibition of cold receptors
Inhibition of heat receptors