How long is your foot going to be in plaster for? Sounds like you are getting a bit desperate!
To be honest, I've had various ops on my legs / feet. This was expected. I've had oversized boot, plasterlike cast, dressings with various things like silver, iodine under.
Last time it only took 2 weeks to be 99% healed, this time it's been nearly a month. My on call nurse is very good to re-dress foot or admit me to a hospital or just visit tourist places so long as no hanky panky.
Normally I usually punt at least once a week for sex type service or just a massage and relief. I'm missing having a long term partner now
Back in the day (at least in my experience) you call call up a SP, go round often there was no need for a shower if it was a quick pump and dump or just BJ service and a quick clean with wet wipes. These days it seems a shower is almost mandatory. When near home I have some regs I can visit.