According to him, the nose is a combo of 3 things that happened close together -
1) He snorted glass mixed with crushed up pills. Apparently in a drug filled stupor, they crushed the pills up with a glass and it broke, and they didn't notice that flecks were still in the powder.
2) The nose got infected, and he never let it heal, which exacerbated that damage done to it from coke use and the glass.
3) He got punched in the nose by a bookie's muscle for owing money -
https://twitter.com/artiequitter/status/939374338855391232?lang=en
.
So now he has to get the whole thing rebuilt, but the doctors are refusing because his constant drug use keeps causing infections, etc.... There is basically no support structure left in there.