Long-wavelength light exposure can reduce lymphedema and general swelling by improving blood flow and mitochondrial function.

“There are now also data showing that long-wavelength light exposure can reduce lymphedema in conditions like people who are being treated for breast cancer, or can simply reduce inflammation for people that are not suffering from cancer or full-blown lymphedema but have some puffiness of the face or some other tissue that's experiencing swelling. Long-wavelength light can help. And that much of that effect is by way of improvements of blood flow to that area as well as improvements in mitochondrial function...”