Use mouse auricular swelling model validation glucocorticoid, aspirin, acetaminophen anti-inflammatory effects Experiment aim: 1 observe glucocorticoid, aspirin, acetaminophen the anti-inflammatory effect 2. Compare glucocorticoids and aspirin dosages and acetaminophen the anti-inflammatory effect Experimental principle:Using animal experimental inflammatory models can observe the anti-inflammatory drugs. Will apply to mice ear (xylene, may damage, leading to inject excessive cortisol function display, can cause local inflammatory cells, make some physical damage such as histamine, or peptide and protein fiber enzyme etc, cause local capillary permeability increase, inflammatory cells infiltrating, cause ear acute inflammatory swelling. Type exudate According to an ear infection with another ear can calculate the weight difference. And swelling To give medicine group and control group for comparison, swelling degree between qualitative determination of the anti-inflammatory effect of using xylene, will cause inflammation in mice, the other side of the ear side. Compare two ears quality difference