"As with the current Covid-19 outbreak, most of the victims of so-called `Spanish flu’ did not die from influenza: they died of pneumonia and other complications...
...medics found that severely ill flu patients nursed outdoors recovered better than those treated indoors. A combination of fresh air and sunlight seems to have prevented deaths among patients; and infections among medical staff. There is scientific support for this. Research shows that outdoor air is a natural disinfectant. Fresh air can kill the flu virus and other harmful germs. Equally, sunlight is germicidal and there is now evidence it can kill the flu virus."
Source:
"Records from an “open-air” hospital in Boston, Massachusetts, suggest that some patients and staff were spared the worst of the outbreak. A combination of fresh air, sunlight, scrupulous standards of hygiene, and reusable face masks appears to have substantially reduced deaths among some patients and infections among medical staff."
Source:
https://www.bostonglobe.com/2020/04/04/opinion/revisiting-an-old-treatment-infectious-disease-fresh-air/?fbclid=IwAR3qGCAVmJlQM9OHnhVQhYLUltlcee1Bb8Dvk6AKiSkPgvym9aqbFcMJlE4
"The application of cold pure air to the interior surface of the lungs is the most powerful sedative that can be applied, and does more to promote the healing of cavities and ulcers of the lungs than any other means that can be employed...
...By the 1850s, Florence Nightingale (1820–1910) was writing about the importance of sunlight and copious amounts of fresh air in the recovery of hospital patients, but her ideas were slow to gain acceptance....
...In 1919, Hill wrote in the British Medical Journal that the best way to combat influenza infection was deep breathing of cool air and sleeping in the open."
Source:
"Breathing through nose is a healthy habit approved by researchers and it is also helpful in cure of flu. Because normal nose breathing help us to use nitric oxide generated in our sinuses. And research told us that nitric oxide has confirmed function of destruction of viruses, parasitic organisms, and malignant cells in the airways and lungs by inactivating their respiratory chain enzymes."
