Are there other people out there who are finding it hard to cope with their siblings drug addiction. My sister has been on cocaine extensively for 10 years. I have just put 2 and 2 together and realised she is also on crack. She is ruining my parents life and completely altered the dynamics of our family. I have to be there to comfort my darling parents who are amazing, but vven though my DH is fantastic, he doesn't completely get how i feel as he hasn't got the same connection to my sister as i have. I am so sad when i think what she has done and what has happened to her that sometimes i cannot bare it.