Menthol and racemic menthol can be used as flavoring agents for toothpaste, perfume, beverages, candy, etc; It is used as an irritant in medicine. It acts on the skin or mucous membrane and has a cooling and antipruritic effect; Orally, it can be used as an anti wind medicine for headache, nasopharynx, laryngitis, etc; Its esters are used in perfumes and pharmaceuticals