I’m sorry for your pain, finger / hand pain is bad.
I fell and my hand swelled up. Went to A and E told no fracture (but some bones look chipped and had an a sharp edge) and you need to let swelling go down wait 6-8 weeks. Went back 6 weeks later as no change and told to leave it 12 months as tissue damage and and there was ‘fractures’ that had healed. No change in 12 months saw consultant multiple issues with joints and damage between joints. Fingers dislocating twenty times a day. 16 months later - Operation to remove joints and fuse bones together. 8 weeks to recover from surgery and 20 weeks of physiotherapy. Hand will never move the same but pain is gone. As an earlier poster said my choice was clear- lose some function and try to eliminate pain. My fingers don’t bend the same way now - they move up and down but don’t bend. But I had lost daily function any way through daily pain. It was pretty awful surgery but the joints were so damaged the consultant said we can steroid injections but you will be back in 6 months so I chose surgery. I expect my recovery was so poor because I was left for 12-18 months with 20 plus dislocations a day on my writing hand.
I will have my other hand (same injury but not as bad) done in the next few years but the pain from previous surgery was pretty horrific so I need a couple more years to build myself up to it.
I would try to avoid strapping and to keep it mobile as possible whilst keeping any broken bone fixed. Trouble is you don’t want it in the fixed wrong position and I don’t want to give you medical advice. Warmth eased my pain not ice. Gentle exercise, stop if too much pain. I had a plastic moulded boat around the broken fused bones on all my fingers and wonder if that would be good for you?
I wonder if a plastic boat type almost clipped on the side might have helped whilst it healed but I don’t think it will now (see my image below) . As you are 6-8 weeks post injury the bones will have fused already. See my other image. If you think you had a boxer’s break on the end (or you KNOW you have). X rays are not exact- in my case my injury damaged the cartilage between the joints and the fractures I had weren’t repairable (chips and edges knocked off bones) but the main damage was the cartilage which wasn’t repairable so bone fusing was the only option. So it might be cartilage- in my case the injury caused cartilage in all my fingers to be damaged and basically gave me arthritis in my entire hand.
Pain relief, paracetamols and ibuprofen but when taken rest the joint completely. Put it in the sling and rest it. Elevate if you can. Whilst you wait for hand therapy and MRI.
My work were very unsympathetic to my injury really and were ‘oh how terrible’ but then gave me 500 pages to write by hand that week - and honestly that is what damaged the injury more. I have a role to play in that too - I should have got the GP or OH to stop me writing within my job quicker prior to surgery. To be fair to work - once the consultant said to them the constant dislocations have caused the long recovery they were happier about the long recovery time post surgery.
For me serious painkillers and elevate are the only things that helped post surgery but nothing really before. If it was painful I took painkiller but then work gave me more work and actually when I didn’t take painkillers I could say - I need to stop my fingers won’t move now.
I’m sorry you are in this position. But gentle flexing etc and wait do MRI is probably your best bet!