Sold over-the-counter (OTC) without a prescription, Salonpas pain patches deliver active ingredients like menthol, camphor, ...

It contains ingredients like menthol, camphor, methyl salicylate, cassia oil, and capsicum. These ingredients can act as an expectorant and help muscle pain, headaches, arthritis pain. If you're ...

But peppermint can help. According to Mount Sinai, the main ingredients in the herb — menthol and methyl salicylate — have antispasmodic properties, which help calm the gastrointestinal tract.