These disease fighting capability cells also release substances that further irritate this pain nerve endings, inducing more pain.  

The body's defense mechanisms starts a process that him and i call "inflammation".   "Inflammation" is actually the process whereby your system heals itself.

Inflammation is part of the healing process.

After a wound and repair of the injury in the process of inflammation, this inflammatory process ends.   In the event the inflammation is gone the pain is gone too.   This raises a critical question.     "What happens when you use anti-inflammatory medications to lower inflammation?   If you restrict the inflammatory process you certainly will interrupt the process associated with repair.   You are preventing your system from repairing the ruined area.  

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Clinical tests have shown that people who take NSAIDs (Non-Steroidal Anti-Inflammatory Drugs) actually improve the rate of deterioration within their joints.   So when you are taking NSAIDs for chronic pain, you risk increasing this speed of degeneration of the very joints that are negatively affecting.  

The point here isn't that any of us shouldn't take a drug if we need to get relief of soreness.   The point is that him and i shouldn't rely on drugs long term because of the fact that they prevent self-repair, along with their other harmful adverse reactions.  

Lets look somewhat more at the process involving inflammation.   We may use the analogy of harm to a house.   If a house is damaged, the first thing is to reduce all the damaged timber, siding, roofing, etc.   house construction, whenever there is tissue damage or injury-or damage to your house, the first thing is to take out all the debris. http://StCloudMNChiropractors.com/Chiropractors-St-Cloud-MN
  That omega-3 fats from fish oil may help relieve pain may are an illogical claim until you understand the relationship concerning certain fats, hormones and inflammation.

If you hated chemistry in the school, bear with me for a few small paragraphs.

There are two types of fat that any of us must have in our diet... that our body cannot produce without attention.   These are the Omega 3 and Omega 6 fats.   Our ancestors consumed much, much more Omega 3 fat than we do now.     We used to eat about equal numbers of the two types involving fat.   Americans today we eat ten to help twenty times more Omega 6 body fat than we do Omega 3 fats.   The reason that this is certainly important is that our body's chemical balance shifts really critical way when we eat a great deal Omega-6 fat.  

One hormone to consider the name of -- prostaglandin

One of many things that the body uses the Omega-3 together with Omega-6 fats for is to make hormones.   These kind of hormones are called prostaglandins.   Prostaglandins are involved in many key chemical balances through the entire entire body.     For quite some time it was not understood how aspirin worked.   Then someone was offered the Noble Prize for figuring out that aspirin inhibited the production of most of the prostaglandins.