BLACK MOULD! Please Help!!?

I've been renting out an appartment for around 4 years now and experiencing some of the sypmtoms associated to black mould. When i saw it growing out from under my bathroom wall (approx 5ft wall) i decided to rip down the wall to re-do it but to my horror i found the wall COVERED WITH BLACK MOULD! Completley... show more I've been renting out an appartment for around 4 years now and experiencing some of the sypmtoms associated to black mould. When i saw it growing out from under my bathroom wall (approx 5ft wall) i decided to rip down the wall to re-do it but to my horror i found the wall COVERED WITH BLACK MOULD! Completley covered! I stopped after one wall and phoned the healthline but they didn't offer much help. And now i don't know what to do...is there a number i should phone? how do i go about cleaning this up? Now there are proabably millions of toxic spores floating around my appartment....uh oh.
What do i do...PLEASE?
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