Hi Doctor, We Are Using 'Dettol Mould And Mildew' To

Hi Doctor, we are using 'Dettol mould and mildew' to clean bathrooms, which is strong bleach and we breath the strong smell, my wife regularly cleans the bathroom. Recently she was diagnosed as thyroid cancer, I have read in Internet says some chemicals causes cancer, please advise me if mould & mildew is causing cancer?
Thanks, Ganesh