My husband 43 years, diagnosed with metastatic bladder cancer spread to L1, L2 and T2 and left hip and right rib! 5 Radiations including 2 SBRT done, and after 4 cycles of cis+gem PET scan performed which shown new progression in C2, so doc, changed plan to Keytruda with 3 weeks interval. We are from Bangladesh, and for best treatment we did everything in Singapore. We have stayed here almost 4 months, and since he has a 3 weeks interval for next immuno we have decided to go back to our country with family and friends. Hopefully he may feel better! What side effects should I be aware of? And is this alright to travel after one immuno?