幼儿好动，自控能力又比较差，头部往往容易撞到硬物。由于头部血管丰富，而且头皮下面就是头骨，因此，一旦撞伤，撞伤部位的血液从血管里流出来后不容易散开，从而形成一个肿包。这时，成人可取一些碎冰块装入塑料袋内，制成冰袋轻轻地压在肿包处，冷敷几分钟。这样，可... Toddler carefree, self-control ability is relatively poor, the head tends to easily hit hard objects. Due to the richness of the blood vessels in the head and the skull below the scalp, once the bruised and bruised parts of the blood flow out of the blood vessels, it is not easy to disperse, forming a swollen bag. At this time, adult desirability some ice cubes into plastic bags, made of ice bag gently pressed at the swollen bag, cold for a few minutes. In this way, ...