suspect i have cocaine nasal damage, which doctor do i see in london?

[englishmature51]

hello

i have been using cocaine socially on and off for many years, usually a binge about once a month or two. i previously had a deviated septum unrelated to cocaine and it never bothered me. now it does, i mouth breathe and have pressure in my nose/sinus, the shape of my nose has changed, there seem to be shadows on the sides and it seems flattened. i am obviously very scared of nasal collapse. i have been to see my gp who referred me to an ent specialist. they said there was no damage other than a deviated septum. this was a few moths ago and i have used since, now i think there is damage.

it's a hard 'habit' to break, even though i say i am only social, i was determined never to touch it again and even with the horrors of worry over nasal collapse i still did it.

two questions

i wish to have a MRI or cat scan of my nose to access damage, and have an initial private consultation, i have been searching but can not find where or how i can do this, does any body have experience of this in london please?

i have realised i am addicted, not going out seemed the only way forward, but then i impulsively do and end up using mostly, does anybody have advice of meetings in london please? not keen on NA

thank you