In 1964, while the Mother Princess was staying at Phu Phing Palace, Chiang Mai, she realised how poor the local populace were especially in food and medicine. She set up "The Mother Princess Medical Volunteer Unit" on 22 February 1969, and persuaded doctors, dentists, pharmacists, and nurses to join the unit to go and treat patients in remote communities. On 21 May 1974, the unit was renamed to become "The Mother Princess Medical Volunteer Foundation" with the Mother Princess as its President.