Balsamum Copaivae is the catarrhal balsam whose signature is an irritated mucous membrane—urethra, bladder, rectum, bronchi—“weeping” mucus and shreds, smarting and tenesmus, and a surface that answers with itching rashes whenever the internal discharge is suppressed or excessive. At the centre stand burning micturition and post-micturition tenesmus with milky/smoky urine and filamentous shreds or albumen, joined to a dull renal ache and a sore meatus—the very image of subacute urethro-vesical catarrh (Essence ↔ Urinary/Affinities) [Allen], [Hering], [Clarke]. Around this hub are rectal echoes—frog-spawn stools, pruritus ani, soreness—and a skin that breaks into urticaria or measly rashes worse warmth, better cool bathing, especially at night (Essence ↔ Rectum/Skin/10b/10a) [Hughes], [Clarke]. The bronchial strand appears as an abundant white expectoration with laryngeal tickle and warm-room aggravation, often in older catarrhal patients who simultaneously suffer urinary burning—a cross-organ catarrh (Essence ↔ Chest/10b) [Farrington], [Boericke].
The miasmatic colouring is sycotic: over-secretion, thick mucus, warty and urticarial tendencies; psora supplies itch, burn, and restless warmth; syphilitic tones darken the picture when blood and albumen tinge the urine and excoriations appear. The modal code is unambiguous: night and warmth worse (itch, urging, cough); during/after urination worse (tenesmus); beer, spices, acids, coffee worse; cool air/bathing and free water better (Essence ↔ Modalities). The psychology is that of irritation rather than fear: he is peevish, sleep-broken, fastidious about rubbing parts, anxious only about the next call and the burning it brings (Essence ↔ Mind/Sleep). Differentially, Cantharis rages with incessant agony and blood in every drop; Copaiv. is catarrhal, mucous, with a skin corollary. Terebinth. smokes and smells violet; Copaiv. shows shreds and itch. Sarsaparilla stabs at the end; Copaiv. strains after. Cubeba lifts nasal/throat catarrh alongside urethra; Copaiv. ties rectum and skin more closely. When this web—urinary mucus + post-urination tenesmus + night/warmth itch + frog-spawn stools—is plainly spun, Copaiva answers cleanly and the case unfolds by quieter nights, cooler skin, clearer urine, and lessening shreds. [Allen], [Hughes], [Hering], [Clarke], [Boericke], [Farrington], [Boger], [Phatak]
