Essence: Oleum animale is the glottic-spasm remedy for whooping and laryngismus: the attack begins in a tickle at the glottis, advances to explosive ringing coughs in volleys, peaks in a crowing inspiration (whoop) with cyanosis, and ends in retching or vomiting—after which the patient sighs, sweats, and sleeps [Hering], [Clarke], [Allen]. The child is fearful, avoids talking/laughing/crying lest the fit begin, and dreads lying down, preferring to be propped or carried upright; cold air/draught, odours/smoke, and exertion ignite the sequence, while warm air, neck-wrap, warm sips, and quiet extinguish it. The kingdom signature (acrid, ammoniacal organic bases from animal distillation) maps neatly to laryngeal irritancy and vagal hyper-reflexia. Miasmatic shading is psoric–sycotic (paroxysm, spasm, mucus shifts) with a syphilitic edge only in asphyxial and convulsive extremes.

Differentiation: Prefer Ol-an. over Drosera when retching/vomiting is an integral, relieving close to each paroxysm and crowing is distinct; over Corallium when the pace is not ultra-rapid but the whoop is marked; over Coccus-c. when ropiness is absent; over Mephitis when the central problem is glottic closure rather than inability to exhale; over Sambucus when the attacks finish with retching, not merely nasal spasm. Clinical ordering frequently runs: early Ipecac. (nausea at every stage) → Oleum animale (spasm–whoop–retch) → Drosera/Coccus-c. as catarrh asserts. Regimen is half the cure: keep the child upright, warm the neck and room air, avoid cold draughts/odours, allow warm sips, and do not force speech or crying; most relapses are preventable by these explicit modalities.

Oleum jecoris aselli is a terrain remedy: it suits the wasting, chilly, sweat-soaked constitution whose appetite is good but assimilation is bad, where chronic chest catarrh, enlarged glands, rickets/caries, and dry, rough skin weave a single fabric [Clarke], [Hering], [Boericke], [Boger]. The pace is slow and draining rather than stormy; the reactivity is blunted—little fever, much sweat; the thermal state is cold-damp-averse with a thirst for dry warmth. The picture often begins in childhood: a thin, fair or pale little one with a big belly, sweaty head by night, open fontanelles, large glands, chronic coryza, and a tickling cough that worsens in fog. He eats eagerly yet does not gain; fats disgust or loosen the bowels; when growth spurts or dentition demand more, rickets appears. In youths and adults the same axis shows as short breath on stairs, palpitation, evening flushing, and profuse night-sweats, with dry winter cough and general prostration.

Key polarities: Worse cold damp, winter/evening, exertion, rich/fatty foods, night in bed, and rapid growth/dentition; better dry warmth and sun, simple frequent feeding, gentle graded exercise, rest, warm bathing and thorough drying, and calcic–phosphoric companionship. The kingdom signature—an animal nutritive oil—maps to its clinical action on assimilation, ossification, and resistance: it steadies the organism rather than excites it. Choose Ol-j. over Calc-phos. when night-sweats + chest catarrh dominate, over Calc-c. when the habit is lean rather than flabby, over Phosphorus when burning/bleeding are absent and chilliness with sweats is the keynote, over Iodum when restlessness and heat are not present, and over Silicea when suppuration is not yet the main event. Clinically, it shines as a constitutional intercurrent to consolidate gains after an acute catarrh and to carry the delicate, sweat-weary patient through the long arc back to robustness [Clarke], [Dewey], [Farrington].