Microfat droplet. How do you go about this procedure for a third revision to thicken the skin?

I was told by a few doctors that this is an option that helps thick in the skin and cover a regularities as well as promote stem cell regeneration and circulation improvement. How do you go about this procedure for a revision technically third revision to thicken the skin at the tip ever so subtly? Can this technically be used to lower nostrils? Is it a quick procedure? Does it have to be taken through the belly button? s there chance of necrosis? What's the price point for this type?