(Concern) My knee hurtsㅠㅠ

A very long time ago, when I was dieting, I used to run at the gym.

My knees hurt from overdoing it, so I started from that time.

My knee has been hurting consistently.

Every time I was sick, I received acupuncture treatment and physical therapy.

The pain continues.

About two years ago, I had an MRI of my knee, and it showed knee osteoarthritis.

They said, "Let's get the injection," but I was too scared and didn't get it.

As my knee pain worsens progressively, I now need injections.

I wonder if it should be correct.

Has anyone who has received a knee injection experienced any effects?

I'm curious.