 Known as baka or baka ni <unk> in Fiji , Ficus obliqua has many of its parts used in Fijian traditional medicine , and was previously held to be sacred there . Its white sap has been used for painful or swollen joints and limbs or boils , or diluted with water and drunk to improve breast milk . Liquid extracted from the root bark has been used for headaches or , when diluted , to improve health after childbirth , and the leaves are applied to venereal lesions . The species has been traditionally used for boils in Samoa and Tonga . 
