On the basis of the above mentioned examination, the author investigated the therapeutic effect of NK 91 against both tuberculosis and moniliasis patients discharging Candida albicans continuously in sputum. 1) 241 cases (28.3%) of 850 patients with pulmonary tuberculosis, was dischaging Candida albicans in sputum. 2) The administration of NK 91 against tuberculosis patients discharging Candida ablicans in sputum, did nut present little appreciable changes against tuberculosis lesions, but remarkable decrease of Candida albicans in sputum. 3) In the administration of NK 91 to 6 patients with Moniliasis, three cases recovered completely and a case slightly, but others never. 4) Photosensitizing dye NK 91 showed a moderately fungiostatic activity as mentioned above.