The author has burned the normal rabbits, which are not lowered the function of reticuloendotherial system, dividing them in three groups, weak, middle and strong, and moreover has injected photosensitizing dye, Platonin pro kg 5, 25 and 50γ on each burning rabbits; has taken observations of their reticulo-endotherial system, Congo-red test method, electrophoresis of the serum protein and blood picture. It was found that it is effective the administration of Platonin on healing of burns, especially injected pro kg 5, 25 and 50γ owing to their burning degrees three times in every other days.