Anacardium occidentale or the ordinary cashew nut is not just a nutritious food. It has a number of medicinal properties, particularly the ability of the cashew shell oil to fight skin problems. The root, leaves, bark and the fruit of the Anacardium are used in herbal systems of medicine. A number of folk and tribal medicines across the globe also recognise Anacardium as an important medicinal plant that has the potential to treat sores caused by leprosy.
The oil obtained from the cashew shell is corrosive and thus it should not be taken in quantities of more than 2 ml a day for internal use. Because of this corrosive property, cashew shell oil dissolves dead skin bringing relief from skin troubles like warts and corns. It also heals the cracks on the soles of the feet and the heels. The juice obtained from the cashew apple is useful in the treatment of problems like sore throat and the accumulation of phlegm due to common cold or bronchial infection. Cashew apple juice has been found to have anti-cancer properties.
Since cashew apple juice is astringent in nature, it is best taken in small quantities. Ripe cashew apple can also be taken to improve general health.
Note: Those allergic to certain herbs should avoid them altogether.
Disclaimer: Consult a professional before trying herbal formulations.