Its nut, also known as cashew, is commonly eaten as food. People also use the nut to makeΒ medicine. Cashew is used forΒ stomachΒ and intestinal (gastrointestinal) ailments. Some people apply cashew directly to theΒ skinΒ as aΒ skin stimulantΒ and to seal (cauterize)Β ulcers,warts, and corns.