Advice please - arthritis in my thumb joint

[Rutlandwater]

I've developed arthritis in my thumb joint - it comes and goes.
I'm not sure what inflames it or what I can do to calm it down.

What have you done that helps?

Watching with interest as I’m in the same place. I had an accident last year and damaged my thumb, an X-Ray a few weeks later showed degeneration but it didn’t hurt so I ignored it - stupid because I cancelled being on the waiting list for the waiting list to see a orthopaedic consultant. Cue COVID and another respiratory illness and suddenly I’ve got arthritis in my shoulder, this week it’s gone to both thumbs.
I’m trying this site
https://www.esht.nhs.uk/wp-content/uploads/2022/03/0505.pdf
but I’m thinking of calling my surgery to talk to my GP and, hopefully, go on their physio waiting list as I don’t mind paying to see someone for one problem but this is now getting silly.