Grandmabatty, I'm sorry to hear about your wrist.
Suffering from tensonovitis in my right hand was one of the reasons I had to give up my job, it is excrutiating. I couldn't use it for nearly six months, because I didn't want to bother anyone and it got increasingly worse.
I wear immobilising splints (still do on occasions) and use 10% Ibruprofen gel, which is only available on prescription. My treatment included physio, steroid injections, hot and cold packs and eventually an op. If you are allowed, take Ibruprofen tablets, unfortunately I'm not allowed them. It takes a combination of treatments to get relief.
By all means, please go to your pharmacy for advice, but also phone your GP for help. From the sound of things, you need early intervention.
I hope you get some relief soon. Mine felt like constant, raging toothache in the end. I was a fool, trying to be stoic!