The changes mainly were edema, hyperemia and inflammatory cell infiltration.
主要病理改变为水肿、炎症细胞浸润和充血。
Hyperemia and edema disappear 4 days later, chronic inflammatory cell may exist.
第4天充血水肿消退，可有慢性炎性细胞浸润。
In sodium bicarbonate group, large amounts of inflammatory ooze was found to adhere to the surface, with necrosis of hair follicles, a few lymph cells infiltrated and hyperemia oedema disappeared.
碳酸氢钠组表面大量炎性渗出物附着，伴有毛囊坏死，少许淋巴细胞浸润，充血水肿消失；
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