No, there is no reason your husband would need anyone to accompany him for BCG treatments. Of course, it IS nice to have support for anything, even (or for me, especially, dental appointments!) I live alone and never had anyone go with me. Was also alone at home.
What to expect. He won't feel comfortable...as the two hours (as long as he is expected to "hold it") goes on he will feel more and more urgency. Some people can't hold it for the entire two hours, but the longer the better. For me the next four hours were rather miserable. I kept having to urinate...even sat on the toilet for relatively long periods since it was too much trouble to keep running back and forth. Some burning and bleeding. BUT NOTHING MAJOR. By the end of the six hours I was able to cook and eat dinner. Side effects? Yes. Of a kind that needed someone there? No. Some people have been known to go to work after treatment; I don't think I could have and don't recommend it.
I was often fatigued the next day or so. But managed to go on with daily living without any trouble.
I don't remember exactly how long the maintenance treatments went on; it seemed like forever!! By the end I was down to 1/3 the original dose. AND HAVE BEEN CANCER FREE FOR FOUR YEARS.
This is NOT a big deal, and you both can do this!!
Sara Anne