What Is The Permanent Treatment For Klebsiella Pneumoniae?

my mother has CRE/resistant klebsiella pnuemoneae(excuse the spelling) She is allergic to most antibiotics,sulfa, & penicillin. She has been treated five times obviouly they haven t worked in full! She easily goes anaphylactic! mid way through treatments. Last trtmt. was 7 days ago. 1st day , IV Ertapenem 1mg and litocane, prior to trtmt. she premeds w/ 50 mgs oral benedryl,1 hour cooktime prior ttrtmt.there was to be an additional 9 doses IM and on 6th dose went into shock. She is being readmitted in a.m. for another attempt she is trying oral doses of colodial silver. HELP WHAT TO DO? hOW LONG CAN THIS GO ON BEFORE SHE DIES? wHAT ARE THE SYMPTOMS OF DEATH DUR TO cre?