Selection of Dose and Potency in Acute vs. Chronic Disease: A Homoeopathic Perspective Foundational Principle (Hahnemann's View) Hahnemann himself was cautious about fixed rules. In the Organon (especially 5th & 6th editions, Aphorisms §245–§263) and The Chronic Diseases, he emphasized: The remeRead more
Selection of Dose and Potency in Acute vs. Chronic Disease: A Homoeopathic Perspective
Foundational Principle (Hahnemann’s View)
Hahnemann himself was cautious about fixed rules. In the Organon (especially 5th & 6th editions, Aphorisms §245–§263) and The Chronic Diseases, he emphasized:
The remedy is more important than the potency, but the potency must match the susceptibility of the patient and the nature of the disease.
He used the LM (50 millesimal) potencies in his later years precisely because he found them more flexible and less likely to produce aggravations — particularly in chronic cases.
ACUTE DISEASES
Key scholars: Hahnemann, Boericke, Allen, Hering
Characteristics of Acute Cases
1. Sudden onset, rapid progression
2. Clear causation (often)
3. Strong, well-defined symptoms
4. Higher vital reaction (susceptibility)
Dose & Potency Guidelines
1. Hahnemann: Low to medium potencies (6C, 30C) repeated frequently; in very acute, even mother tincture or lowest triturations
2. Boericke: Prefers 30C–200C in acute conditions; advocates higher potencies when symptoms are clear and intense
3. Hering: Believed acute diseases need the similar remedy in moderate potency, repeated according to intensity — “the more acute, the more frequent the repetition”
4. Allen: High potencies (200C, 1M) work rapidly in well-indicated acute cases — sometimes a single dose suffices
General Consensus on Acute
1. Dose: Often repeated (every 15 min to few hours in severe cases)
2. Potency: Low (6C, 30C) for mechanical/toxic causes or unclear pictures; higher (200C, 1M) for sudden, violent, well-defined cases with strong mental symptoms
3. Aggravation risk is lower because vital force is reactive
CHRONIC DISEASES
Key scholars: Hahnemann, Kent, Stuart Close, Hering, Vithoulkas
Characteristics of Chronic Cases
1. Long-standing, miasmatic (psora, sycosis, syphillinism)
2. Complex symptom picture
3. Lowered or distorted susceptibility
4. Deep-seated pathology
Dose & Potency Guidelines
1. Hahnemann: In Chronic Diseases, he recommended 30C as standard for most chronic cases, repeated at intervals; later switched to LM potencies (0/1, 0/2, 0/3…) for gentler, daily-action approach
2. Kent: Strong advocate of high potencies (200C, 1M, 10M, CM) in chronic cases. Believed the “highest similar” must reach the deepest plane. One dose, then wait.
3. Stuart Close: Emphasized potency = degree of susceptibility. Higher susceptibility → higher potency. Single dose, long wait.
4. Hering: Warned against too-frequent repetition in chronic cases; one dose must be allowed to complete its action. “Wait and watch.”
5. Vithoulkas: A middle path — uses mostly 200C and 1M in chronic cases, with careful case management. Believes high potencies cure deeper, but require precision.
General Consensus on Chronic
1. Dose: Single dose preferred; wait for action to exhaust before repeating
2. Potency:
*Low (6C, 30C): for sensitive patients, children, elderly, organic pathology, low vitality
*Medium (200C): most common in well-indicated cases
*High (1M, 10M, CM): for deep-seated, well-proven cases with strong mental/general symptoms and good vital reaction
3. Antidoting risk is higher — too high a potency in chronic cases = severe aggravation
The Deeper Concept: Susceptibility
This is what most modern scholars (Vithoulkas, Close, Morrison) emphasize:
1. High susceptibility + strong vital force → higher potency works better
2. Low susceptibility / damaged vitality / organic pathology → low potency or LM scale
3. Acute = high susceptibility (in most cases) → higher potencies tolerated
4. Chronic = variable susceptibility → careful case analysis needed
My Take
Honestly, the real skill isn’t memorizing a table — it’s reading the patient’s susceptibility before you even pick a potency. The best classical prescribers (Kent, Vithoulkas, Close) all circle back to the same idea: the potency should match the person, not just the disease label.
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Psora Produces Mental and Sensorial Disorders — Explanation Introduction The term psora originates from the ancient Greek word psora, meaning "to rub or scratch," and historically referred to scaly, itchy skin lesions — most commonly scabies (1). Samuel Hahnemann, the founder of homoeopathy, elevateRead more
Psora Produces Mental and Sensorial Disorders — Explanation
Introduction
The term psora originates from the ancient Greek word psora, meaning “to rub or scratch,” and historically referred to scaly, itchy skin lesions — most commonly scabies (1). Samuel Hahnemann, the founder of homoeopathy, elevated this concept in his seminal work The Chronic Diseases, Their Peculiar Nature and Their Homoeopathic Cure (1828/1842), proposing psora as the “mother of all chronic diseases” (2). According to Hahnemann, psora is a chronic miasmatic disease that begins with a cutaneous eruption (the itch), and when suppressed, its internal dynamic influence spreads to the mind and sensorium, producing a wide array of mental and sensorial disorders (3).
The Miasmatic Concept of Psora
A miasm is defined as a dynamic morbific agent that is not perceivable by the senses but is recognized only by its effects on the vital force (4). Hahnemann identified three fundamental chronic miasms — psora, sycosis, and syphilis — and held that approximately seven-eighths of all chronic non-venereal diseases originate from psora (2,5). The central theme of psora is deficiency, lack, and need, expressed across both physical and mental planes (6). When the primary skin manifestation (eruption) is suppressed by external applications, the internal miasmatic force is driven inward, deranging the vital principle and manifesting on the mental and sensorial levels (7).
The scientific parallel of psora is now understood as an immunological/hypersensitivity response, where suppression of skin disease leads to chronic dyscrasias such as bronchial asthma, allergic rhinitis, and neuro-psychiatric disturbances (8).
How Psora Produces Mental Disorders
According to classical homeopathic literature, psora first affects the soul (vital force), then the mind, and lastly the body (8). This is the rationale behind the rich mental symptomatology attributed to psora.
Key Mental Symptoms Produced by Psora:
1. Anxiety and Fear — The hallmark of psora is an underlying anxiety, often with fear of poverty, failure, disease, death, ghosts, strangers, or being alone (9,10).
2. Anticipatory Anxiety — Psoric patients are extreme planners, constantly preparing for imagined future misfortunes; they fear insecurity and last-minute problems (10).
3. Restlessness — The patient is compelled to move about; the mind is “quick, active,” but easily prostrated by mental exertion (9,11).
4. Depression and Despondency — Mental depression, melancholy, sadness, timidity, and a sense of fatigue (9,12).
5. Hopelessness and Suicidal Tendencies— Severe cases may exhibit despair of salvation, fear of becoming a beggar, or an inward urge to end misery (12,13).
6. Irresolution and Low Self-Confidence — Psoric persons cannot easily decide; once decided, they become obstinate (10).
7. Vanishing of Thoughts — Inability to concentrate; thoughts disappear while reading or writing (9).
8. Easily Frightened — Trifling causes produce trembling, shaking, weakness, and perspiration (9).
9. Sudden Mood Transitions — Sudden shifts from cheerfulness to sadness or peevishness without apparent cause (9).
10. Hypersensitivity of Mind — Over-sensitive to sad stories, violence, criticism; emotionally easily wounded (10).
11. Disturbed Mental Equilibrium — Forgetfulness, weakened mental faculties, aphasia, and apoplectic tendencies in advanced states (13).
12. Apprehensive Dreams and Sleeplessness — Uneasy, frightful, or vivid dreams reflecting inner unrest (14).
The psoric mind is thus described as active, anxious, and hypersensitive — in contrast to the sycotic mind (malactive/cross) and the syphilitic mind (inactive/dull) (8).
How Psora Produces Sensorial Disorders
Psora, being fundamentally a “sensitising miasm,” produces heightened excitability of the sensorium, with functional (not structural) disturbances of the special senses (15).
A. Sensorial / Vestibular Disturbances
1. Vertigo: Numerous and peculiar — produced by walking, looking up, rising from sitting/lying, or from digestive disturbances; accompanied by spots before the eyes; relieved by lying down(11,14).
2. Aggravation of vertigo by emotional disturbances is characteristic of psora (11).
B. Visual Disturbances
1. Intolerance of daylight or sunlight; symptoms worse in the morning, better by heat (11).
2. Spots before the eyes — considered a characteristic stigma of psora (11).
3. Functional complaints — flickering, dimness of vision, photophobia (15).
C. Auditory Disturbances
1. Marked oversensitiveness to sounds— a characteristic nervous reflex of psora (11).
2. Intolerance of noise; functional ear symptoms without structural pathology.
D. Olfactory and Gustatory Disturbances
1. Oversensitivity to odours (15).
2. Perversions of taste — bad, sweet, bitter, or sour taste; regurgitation of food taste (11,14).
E. Headache (Cephalic Sensorium)
1. Sharp, paroxysmal headaches in the morning, increasing as the sun rises and better as the sun sets (11,14).
2. Throbbing headaches with red face, relieved by rest, quiet, sleep, and hot applications (11).
F. General Sensorial Hypersensitivity
1. Hypersensitivity to touch, pressure, temperature changes, and atmospheric variations (15,6).
2. The psoric patient takes cold at the slightest exposure and reacts intensely to every climatic change (12).
The defining feature of all psoric sensorial disorders is that they are functional, not organic. They arise from the disturbed vital force and are reversible with appropriate anti-psoric treatment (4,15).
Mechanism: From Skin to Mind and Sensorium
The classical explanation, supported by modern immunological interpretation, is as follows:
1. The miasm of psora (originally itch/scabies — Sarcoptes scabiei) enters the body through the skin (16,17).
2. When the cutaneous eruption is suppressed, the internal miasmatic force is driven inward.
3. It first disturbs the vital principle (soul), producing internal itching — a “mental itch” — characterised by restlessness, anxiety, and insecurity (8).
4. It then extends to the mind, producing the mental symptoms described above.
5. Finally, it reaches the sensorium and body, producing functional disorders of the special senses, vertigo, headaches, and numerous somatic complaints (4,8).
Thus, psora is considered the deepest and most universal miasm, capable of producing the entire range of mental and sensorial disorders that Hahnemann grouped under chronic non-venereal disease (2,5).
Conclusion
Psora, as conceived by Hahnemann and elaborated by later homoeopathic physicians, is the foundational chronic miasm that, when activated by suppression of skin disease, produces a distinctive spectrum of mental and sensorial disorders. The mental picture is dominated by anxiety, fear, restlessness, depression, and hypersensitivity, while the sensorial picture is characterised by vertigo, visual and auditory hypersensitivity, olfactory and gustatory perversions, and paroxysmal headaches — all essentially functional in nature. Understanding psora as the sensitising miasm provides the classical homoeopathic framework for recognising and treating these widespread chronic disturbances (2,6,8,15).
Reference
1. Fisher BK, Margesson LJ. Genital skin disorders: diagnosis and treatment. St. Louis: Mosby; 1998. (Historical reference for the term psora in Greek medicine.)
2. Hahnemann S. The chronic diseases, their peculiar nature and their homoeopathic cure. 2nd ed. Vol. 1. New York: William Radde; 1845. (Original German edition, Dresden: Arnold, 1828.)
3. Rivera A. The myth of psora. Hpathy J [Internet]. 2008. Available from: https://hpathy.com/homeopathy-papers/the-myth-of-psora/
4. Vithoulkas G, Hoizey D, Nobile F, et al. An approach to the Hahnemannian concept of psora: “the road less travelled.” Homoeopathic Herit. 2018;5(4):34–62. Available from: https://www.homoeopathicjournal.com/articles/489/5-4-34-621.pdf
5. Close S. Hahnemann’s “Chronic Diseases.” Homoeopath Physician [Internet]. 1882. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9708175/pdf/homoeopathphys134218-0009.pdf
6. Similia. Miasms in homeopathy: psora, sycosis & syphilis explained [Internet]. Similia; 2023. Available from: https://www.similia.io/blog/miasms-psora-sycosis-syphilis-guide
7. Hahnemann S. Organon of the medical art. 6th ed. O’Reilly WB, translator. Redmond (WA): Birdcage Books; 1996. (Original work published 1810.)
8. Shah JL. Psora theory of Hahnemann is scientifically immunological. Homoeopathic Herit. 2018;5(2):8–19. Available from: https://www.homoeopathicjournal.com/articles/392/5-2-8-239.pdf
9. Allen JH. Mind symptoms of psora and pseudo-psora. Homeopathy360 [Internet]. 2015. Available from: https://www.homeopathy360.com/mind-symptoms-of-psora-and-pseudo-psora-according-to-j-h-allen/
10. Master FJ. The psoric miasm — an overview. Homoeopath Herit. 2015;Feb(2). Available from: https://drfarokhmaster.com/wp-content/uploads/2017/10/2015-EDITORIAL-FOR-FEBRUARY-2015.pdf
11. Roberts HA. The principles and art of cure by homoeopathy. Chapter 23: Psora. Rustington: Health Science Press; 1936. Available from: http://www.homeoint.org/books4/roberts/chapter23.htm
12. Royal GC. Psorinum. Homoeopath Physician [Internet]. 1922. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9725555/pdf/homoeopathphys132132-0024.pdf
13. Royal GC. Psora — its nature. Homoeopath Physician [Internet]. 1934. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC9722145/pdf/homoeopathphys134634-0004.pdf
14. Anonymous. Latent symptoms of psora. In: Hahnemann S, editor. The chronic diseases. Translated from the German. 2nd ed. New York: William Radde; 1845. p. 49–82.
15. Homeopathy Study Guide. Psoric miasm materia medica [Internet]. 2021. Available from: https://homeopathystudyguide.weebly.com/psoric-miasm-materia-medica.html
16. Arlian LG, Morgan MS. A review of Sarcoptes scabiei: past, present and future. Parasit Vectors. 2017;10(1):297.
17. Currier RW, Walton SF, Currie BJ. Scabies: a historical perspective. Clin Infect Dis. 2011;52(12):1455–61. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC11589026/
18. Fisher P. From Hahnemann’s psoric miasm to the psoric chronic reaction mode of the XXIst century: examples in dermatology. J Integr Med Ther. 2021;8(1):1–5. Available from: https://www.sciencedirect.com/science/article/abs/pii/S1878973021000232
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