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 ;