The most likely explanation is that your pain was due to bursitis around the knee and not inflammation within the knee joint.
It is also possible that you now have an infection in the knee but this seems less likely.
If it is a bursitis, you may need an injection outside the knee joint, in the soft tissue.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.