78 years old lung cancer patient admitted in hospital had 89 saturation. Respiratory difficulty and abondant phlegm . Started alternative cancer treatment. - Was given 28% oxygen on 4.5 liters oxygen. Saturation read 95%. (After 2 days of alt. treatment, phlegm decreased, less aspirations required ) - Reduced to 24% oxygen on 2 liters oxygen. Saturation read 95% again. (Breathes normally, a couple aspiration in the day). - Reduced to nose canules on 1 liter oxygen. Saturation read 97%. (Breathes normally, a couple aspiration in the day). - Reduced to nose canules on .5 liter oxygen. Saturation is now at 95%. What are those numbers saying to you ?