A comment I found in the link below:

In this link https://www.diseasemaps.org/gpa/top-questions/natural-treatment/

I was diagnosed with GPA at the beginning of 2021. I have been told by my roughly 14 MD's that diet makes no difference and that the necrosis at my fingers and toes was going to lead to amputation; that my lungs and kidneys were permanently damaged and that medications were also to be a permanent part of my life. I have to admit this was not something I was willing to accept and even less for my family. What to do? the only thing that was not recommended...unconventional. I switched my diet over to anti-inflammatory using food as my medicine as you would any other autoimmune disease; added an ND to my team; worked on giving my body what it needed to in essence rebuild what was damaged; ozone MAH infusions and limb bagging, a variety of nutrients that my body was designed to use (ie. glutathione, methyl cobalamin b-12 im injections, unda 2,9,36, PectiSol-C, glutagenics, miraca, EB-N5 and NAC) just to name a few. I've asked myself, does along with as much exercise as I can get, this make a difference? I can't honestly say. I do know that my lungs are clear, my kidneys have gotten progressively better every month, my ANCA numbers have reduced by 50+% each month since leaving the hospital and I am hoping to see 0 or less this month and a filtration rate within acceptable limits if my progress continues, I have yet to have any amputations (1 finger and 3 toes still healing out of 6 fingers and 5 toes but intact because I refused to give them up without an unconventional fight. I was told that none of this was going to happen so if it worked/works than awesome, nothing lost but a few bucks. If you or a loved one have this disease I would suggest you add a Naturopathic Physician (ND) to your team; their focus is to deal with the root while using what God has provided to rebuild us into the strong trees we are meant to be.