I think I’ve been lucky in comparison to your husband as I was given a few instructions: no heavy lifting for 6 weeks and after that build up gradually: drink 3 litres of water a day to help the body recover; I was given a supply of laxatives but have a very good GP who prescribed something more gentle but more effective.
I also had a direct phone number to the Urology nurses who were on hand to answer any questions or concerns I had.
For me, the catheter was a nuisance however the Community Nurses dropped off a barrier cream which relieved the discomfort.
Following removal of the catheter there were some small accidents but nothing that caused upset. Pelvic floor exercises help in regaining control of the bladder.
You will find a lot of useful information in this community, from people with a far better knowledge than me.
Recovery takes time - be patient.