The shot had frightfully lacerated her throat, leaving two gaping wounds from which, as well as the mouth, the blood was pouring in floods.
As the Inquisition rarely allowed its victims to be seen with their limbs distorted and their flesh lacerated by torture, so madness is always concealed in its cell, from whence, should it depart, it is conveyed to some gloomy hospital, where the doctor has no thought for man or mind in the mutilated being the jailer delivers to him.
There are no more uses of "laceration" in the book.
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To treat a minor laceration, clean the cut and close it.
If tetanus shots are not up-to-date, it might be wise to get one after any laceration.