preferred_name: Select a method of stimulation that is convenient and readily available (e.g., waterproof plastic bags with melting ice; frozen gel packs; chemical ice envelope; ice immersion; cloth or towel in freezer for cold; hot water bottle; electric heating pad; hot, moist compresses; immersion in tub or whirlpool; paraffin wax; sitz bath; radiant bulb; or plastic wrap for heat)