The juice and rind of the kaffir lime is used in traditional Indonesian medicine. As such, in Indonesia the kaffir lime is referred to as “jeruk obat”, which translates to “medicinal citrus”. The juice of the kaffir lime is also used in Southeast Asian folk medicine, where it is touted as promoting gum health.
As such, this culture recommends using the lime juice to brush the teeth and gums. The fruit has essential oils which are incorporated into various ointments as well. The rind itself serves as an ingredient in many medicinal tonics which are believed to be beneficial for the blood. Just like galangal and lemon grass, the rind of the lime is also said to be beneficial for digestion.