Does it get any easier than spray-on relief? The Salonpas Jet Spray delivers cool, fast relief of muscle and joint pain… and yes you just spray it on. This spray has menthol which provides fast relief form pain with its cooling, soothing sensation, as well as methyl salicylate and NSAID which kick-in right after that to relieve pain for up to 8 hours. And, there’s no mess since all you need to do is to spray it on your arms, hands, legs, feet or most any muscle or joint. It’s just so super easy to use. Ahhhh-mazing.