Hi, this is for my frd, she is suffering for cad doctors had done surgery on Feb from 6 months she is in icu doctors are saying. She is getting well very slowly and she got some infection she feels cold and cough and now doctors are saying that she needs to be done surgery again can anyone can explain what's the problem? I am her friend very worried about this till when she needs to suffer like this when she will be back to home anyone please explain me. Thank you so much in advance.