This is most frequent in short-nosed dogs, especially bulldogs. Immediate action is important as collapse and heart failure may occur quite rapidly. Remove the dog to as cool a spot as possible. The animal should be carried and not allowed to exert itself in any way. A room with a stone floor is ideal, and the animal should be laid on its right side with the left side uppermost. A current of air helps greatly, and fanning the dog will increase the intake of fresh air. The head and back of the neck should be douched with cold water, or, if ice is available, an ice pack or compress applied.

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