Micro Colitis

Anyone know much about Micro Colitis. My wife had had MS for 25+ years but fell many years ago, had a hip replacement that went terribly wrong and last December discovered that she had a deep wound infection in the hip. She has been on strong antibiotics for the vast majority of this year although they have now been stopped due to persistent diarrhea. The metalwork etc was removed in July but since that time she has also had septaesemia . It now appears that she has Micro Colitis although we are hopeful that the hip infection has finally been cleared.