[meristohm]

Nestor notes that nasal surgery has its own risks of complications. Before surgery, it sounds like fat reduction (through not snacking, and increasing the time between meals, and starting meals with above-ground vegetables and fats and proteins, and reducing sugars significantly [0]) and breathing through the nose as much as possible (even going so far as to tape shut the mouth--worked for me; after less than a year of applying vertically a 1cm-wide strip of medical tape to my lips I habitually breathe through my nose at night) are important steps.

There's another book about breath that you might be interested in, which includes a chapter on breathing for healing [1].

[0] Life in the Fasting Lane (public library) https://www.worldcat.org/title/life-in-the-fasting-lane-how-...

[1] Breath Taking (public library) https://www.worldcat.org/title/breath-taking-the-power-fragi...