Diagnosed with bladder cancer; BCG treatment recommended (6 treatments). Did beautifully with Treatments 1, 2, and 3. Treatment 4 brought a little nausea/throwing up and diarrhea, but only a couple of days. Treatment 5, things seemed to go haywire. Nausea/throwing up and diarrhea started. One week later, off to emergency room for fluids and was sent home also with antibiotic for UTI. One week later, back in the emergency room with acute vomiting and diarrhea. They did find an esophageal tear from the violent throwing up. Admitted to hospital and still here 10 days later. Still vomiting, diarrhea some better. All scans prior to the treatments were clear - stomach, gall bladder, intestines, etc. All same scans have been done and still clear. Removed fluid for sample to see if infection in abdominal cavity. Clear. My research says extreme side effects are rare, but I am hoping someone can offer information or perhaps direct me to additional information or resource of someone who has experience treating the more extreme side effects. Thank you.