Why might you want to decline swelling if it is beneficial?

"Along with redness, heat and distress, swelling is a sign of the inflammatory process at work. When part of the body is injured, chemicals are released that act on our smallest blood vessels, call the capillaries."- http://www.ehow.com/how-does_4567779_swe…

If swelling helps you by enlarging your capillary so that more fluid used to fight off infection is released, why might you want to decrease swelling (by tolerate us say, putting ice on it)?

I understand that on personal basis, swelling can be psychologically and physically irritating, but shouldn't we leave swelling on so that more fluid can continue to be released to fight stale the infection?
Answers:
The extra heat can damage tissues in the nouns (a high enough fever can essentially boil the brain). The idea is to try to allow the process to continue, but not let it move about unchecked. My microbiology professor actually doesn't give her children medicine to lower their fever until it gets to a certain temperature because of this.
it is an irritation, as you pointed out. next to modern science, there is very little downside to reducing swelling and fever. most empire elect to reduce the swelling and fever because it is less aching. however, i can't tell if there is any real medical lead to reducing swelling, so i figure you could let it continue.

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