Our expert says:
When you give an injection like Voltaren, the medicine itself could be irritating to the muscle cells and also pushes inbetween the muscle tissue, stretching it, which can cause inflammation. That can cause the nerves of the skin to swell and you could have temporary sensation loss in the area. It should get better within a week or so although some people have a "dull spot" for a month or two. If the area is still red and warm or if you can't move your arm properly, you should get a second doctor to look at your arm and see if everything is OK.
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.