seriously speaking, ask to a doctor for you pain...for one shot ride paracetamol with codeine could help..but codeine is opiod so you'll become costipate

as all heroin addicted
i hope bbc would confirm this
I know all about the unwanted effects of codeine. My first back problem in 1995 led to me being on codeine for two weeks. At first I thought that not needing to go to the loo was a good thing, I could get by with peeing into a (big diameter) plastic tube that led out of the bed and into a carafe (we have not used it since, it's in the garage somewhere). But after eight days I was gripped with a fierce urge to go for a dump. I will draw a veil over the next few hours, which included embarrassing medical intervention, except to say that I now know what giving birth feels like. It is funny in the telling afterwards (my brother actually fell off his pub stool laughing at my use of the phrase "bin-bags"), but at the time, I thought I was going to die.
Following that experience, I made it my mission to warn anybody I knew even vaguely, that I had heard was in trouble with back problems.
If you are on
any codeine-based painkiller - stuff like cocodamol, cohyrdamol, codyrdamol....in fact anything with "co" in the name; then to save yourself from further pain, take a laxative
every day! Trying to squeeze out a big one (I mean BIG!) whilst simultaneously being affected by a massive back spasm is not something I ever wish to repeat.
PS: The doctors are happy to prescribe codeine, but they never give you a warning to take laxatives. That is based upon the evidence of every single person I have advised on the topic. Nurses are well aware of it though, because they deal with the emergency admissions.
You are now allowed to take the piss. I don't care, my work is done.