Knee injections for arthritic knee

If you take statins take Coenzyme Q10, prevents the leg cramps and pains.

I had an injection in the hip which was fine for the first 10 days but after that the pain was twice as bad as before.
Would think twice before repeating.

I was told by GP I needed a knee replacement, during Covid last year.
My knee was so swollen and at times so unbelievably painful. I too ended up paying for injection.
The relief was amazing, it worked for about 4 - 5 months. Swelling went down pain vastly reduced. The Consultant told me its just a sticking plaster and I could have a repeat depending how long it lasts, up to about 3 he recommended.
Eventually got my NHS appointment was told by Consultant , injections work reasonably well if knee is swollen.
To me so worth the money.
Pleased to say I was only on waiting list 4 months before I had a total Knee replacement (with Robot assistance) on 17th Dec home within 72 hrs.
Sore but sorted, my Hip next!
Best of luck.

Have you had a scan of your knee? We took MissOops for an MRI. The consultant told us that over half an inch of bone had been lost through Arthritis and that the only solution was for a partial knee replacement and that no injections would stop the pain.
Maybe you could see a Consultant before spending more money on treatment?