The Vietnamese word "dầu cao" refers to a type of medicinal oil that is often used for relieving pain, soothing muscle aches, or alleviating symptoms of colds and headaches. It is commonly known as "Tiger Balm" in English, and it is made from a blend of natural ingredients, including menthol and camphor.
In more advanced contexts, "dầu cao" can refer to various types of medicated balms that have similar soothing properties but may differ in their formulations or intended uses.
While "dầu cao" primarily refers to the medicinal balm, in some contexts, it could also refer to other types of oils used in traditional medicine. However, the most common usage relates specifically to the pain-relieving balm.