Last year my kneecap dislocated itself and then put itself back into position. I was given a knee support and physiotherapy to help. That was great.

But recently, and I don't know how it's happened, I've been experiencing constant pain on the inner side of my knee. The knee support I have now isn't effective - it's only causing me more pain. I can't put much weight on my knee anymore, it hurts when I'm standing, placing weight on it, walking, all of that, but it even hurts when I'm sat down, despite elevation and rest. I woke up the other morning with unbearable amounts of pain on the inner side of the knee. It's quite badly swollen too.

What is going on - and what could be my treatment options?