Cough with soreness of chest; cries before the cough, fears the hurt.
If pleuritis occurs after mechanical injuries the first stage will often have to be controlled with Aconite, Bryonia or the other remedies above mentioned, but sooner or later Arnica must come in, and, being in itself a powerful absorbent, will finish it up, or, if not, is well followed by Sulph. acid, which is also a fine remedy to cure ecchymoses, the result of trauma. The indications aside from the history of injury for Arnica are aching or bruised sensation, torpidity even to sepsis, dry, cold extremities, head hot, remaining body cool, and soreness general as if the bed laid upon were too hard.
The child cries before each paroxysm because of the soreness. It hurts him so to cough. Pertussis (Whooping Cough).