Thank you for your reply,
The first thing that you need to do is to get an exact diagnosis as to where your nerve is pinched - pinched nerve can occur at the level of your neck, at the level of your shoulder, at the level of your elbow and in your wrist. Treatment, although similar, really depends on where the nerve is pinched. To get an accurate diagnosis, you might need to have a test called EMG (Electromyography) which will differentiate between which nerve is being affected.
Treatment usually requires you to ice the area where the pinching has occured (ice is a great anti-inflammatory), Aleve or Advil are also used to decrease inflammation and since your daily function is being significantly affected, you might need a course of physical therapy. If symptoms are still not going away, you might need to see an orthopedic doctor to get a cortisone injection into the joint where the nerve is being pinched. Cortisone is a steroid which also acts as an anti-inflammatory.
I hope you find this information helpful. Please fee free to follow-up with any other questions you might have. I will be happy to assist you further.
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Best wishes and good luck,