Instantly put your finger into the throat and feel if the substance be within reach; if it be food, force it down, and thus liberate the breathing; should it be a hard substance, endeavor to hook it out; if you cannot reach it, give a good smart blow or two with the flat of the hand on the back; or, as recommended by a contributor to the _Lancet_, on the chest, taking care to “seize the little patient, and place him between your knees side ways, and in this or some other manner to _compress the abdomen_ [the belly], otherwise the power of the blow will be lost by the yielding of the abdominal parietes [walls of the belly], and the respiratory effort will not be produced.” If that does not have the desired effect, tickle the throat with your finger, so as to insure immediate vomiting, and the consequent ejection of the offending substance. 289. _Should my child be bitten by a dog supposed to be mad, what ought to be done?_ Instantly well rub for the space of five or ten _seconds_—seconds, _not_ minutes—a stick of nitrate of silver (lunar caustic) into the wound. The stick of lunar caustic should be pointed, like a cedar-pencil for writing, in order the more thoroughly to enter the wound. This, if properly done directly after the bite, will effectually prevent hydrophobia. A stick of _pointed_ nitrate of silver, in a case, ready for use, may be procured of any respectable chemist. The nitrate of silver acts not only as a caustic to the part, but it appears effectually to neutralize the poison, and thus by making the virus perfectly innocuous is a complete antidote. If it be either the lip, or the parts near the eye, or the wrist, that have been bitten, it is far preferable to apply the caustic than to cut the part out; as the former is neither so formidable, nor so dangerous, nor so disfiguring as the latter, and yet it is equally as efficacious. I am indebted to the late Mr. Youatt, the celebrated veterinary surgeon, for this valuable antidote or remedy for the _prevention_ of the most horrible, heart-rending, and incurable disease known. Mr. Youatt had an immense practice among dogs as well as among horses. He was a keen observer of disease, and a dear lover of his profession, and he had paid great attention to rabies—dog madness. He and his assistants had been repeatedly bitten by rabid dogs; but knowing that he was in possession of an infallible preventive remedy, he never dreaded the wounds inflicted either upon himself or upon his assistants. Mr. Youatt never knew lunar caustic, if properly and _immediately_ applied, to fail. It is, of course, only a preventive. If hydrophobia be once developed in the human system, no antidote has ever yet, for this fell and intractable disease, been found.