Comparison of Cough in Corallium rubrum and Sticta pulmonaria
1. Nature of cough
Corallium rubrum
Cough is violent, spasmodic, paroxysmal
Comes in rapid, successive explosions, almost continuous during the paroxysm
Sticta pulmonaria
Cough is dry, hacking, teasing
More persistent than violent
2. Type of cough sound
Corallium rubrum
Loud, barking, harsh cough
Often compared to whooping cough without whoop
Sticta pulmonaria
Short, dry cough
Sounds irritating rather than explosive
3. Periodicity
Corallium rubrum
Marked periodicity
Attacks recur at fixed hours, often evening or night
Sticta pulmonaria
No marked periodicity
Cough continues steadily, worse at night due to dryness
4. Exciting cause
Corallium rubrum
Least irritation triggers cough
Talking, laughing, cold air can start violent paroxysm
Sticta pulmonaria
Caused by dryness of respiratory mucosa
Sensation of dust or dryness provokes cough
5. Expectoration
Corallium rubrum
Scanty or absent
Cough remains dry despite violence
Sticta pulmonaria
Little to no expectoration
Feeling that mucus should come but does not
6. Associated sensations
Corallium rubrum
Suffocative feeling during cough
Face becomes red, child clutches throat or chest
Sticta pulmonaria
Sensation of rawness, dryness, or constriction
Constant need to clear throat
7. Relief and aggravation
Corallium rubrum
Worse from cold air, talking, exertion
Slight relief after the paroxysm ends
Sticta pulmonaria
Worse at night and from dry air
Slight relief from warm drinks
8. Clinical conditions
Corallium rubrum
Especially useful in whooping cough, spasmodic cough of children
Also useful in nervous, reflex coughs
Sticta pulmonaria
Useful in dry catarrhal cough, early stages of cold
Cough with intense nasal and bronchial dryness
9. Constitutional tendency
Corallium rubrum
More suited to children
Acute, intense reaction pattern
Sticta pulmonaria
Suited to both adults and children
Subacute or chronic catarrhal states
10. Key differentiating point
Corallium rubrum: Violent, spasmodic, periodic cough in rapid succession
Sticta pulmonaria: Dry, teasing cough from extreme dryness of mucous membranes
Corallium rubrum and Sticta pulmonaria are both dry-cough remedies, but Corallium acts on the nervous, spasmodic element of cough, while Sticta acts on dryness and irritation of respiratory mucosa. Proper selection depends on the violence, periodicity, and cause of the cough.

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