Dr Parvathinandha Rajan
Abstract
Post-viral sequelae refer to persistent symptoms or delayed complications occurring after recovery from acute viral infections. Such conditions have been described following infections like influenza, Epstein–Barr virus, dengue, chikungunya, and more recently SARS-CoV-2. These sequelae often present with prolonged fatigue, dyspnea, musculoskeletal pain, cognitive impairment, sleep disturbances, and neuropsychiatric symptoms. The pathophysiology is multifactorial and includes immune dysregulation, persistent inflammation, endothelial dysfunction, viral persistence, and autonomic nervous system disturbances. These mechanisms may result in prolonged systemic effects even after apparent resolution of the primary infection.
Conventional management of post-viral syndromes is largely symptomatic and supportive, as no specific curative therapy exists for many of these conditions. Homoeopathy, based on the principle of individualization and holistic treatment, offers a potential therapeutic approach in addressing the residual effects of viral illnesses. By considering the totality of symptoms and constitutional characteristics of the patient, homoeopathic remedies aim to restore the balance of the vital force and promote recovery.
Keywords : Post-viral syndrome; Long COVID; Post-viral fatigue; Viral infection sequelae.
Introduction
Viral infections constitute a major global health burden. While most infections resolve without complications, some individuals experience persistent symptoms or delayed complications after the acute phase, collectively termed post-viral sequelae or post-viral syndrome.¹
Post-viral sequelae have been documented following infections such as influenza, Epstein–Barr virus, dengue, chikungunya, and most prominently SARS-CoV-2, leading to the condition commonly known as Long COVID or Post-Acute Sequelae of SARS-CoV-2 infection (PASC).²
These conditions can persist for weeks or months and significantly affect the quality of life and functional capacity of patients.³ From a homoeopathic perspective, such chronic states following acute disease may represent an incomplete recovery or disturbance of the vital force requiring individualized treatment.
Pathophysiology of Post-Viral Sequelae
The mechanisms underlying post-viral complications are complex and multifactorial.
- Immune dysregulation
Persistent immune activation and cytokine imbalance after viral infection may lead to chronic fatigue, myalgia and systemic inflammation.⁴ - Viral persistence
Residual viral particles or genetic material may remain in certain tissues, leading to ongoing immune responses and prolonged symptoms.⁴ - Endothelial dysfunction
Inflammatory damage to vascular endothelium may impair microcirculation and contribute to multi-organ manifestations.⁵ - Autonomic nervous system dysfunction
Post-viral autonomic imbalance can produce symptoms such as tachycardia, dizziness and orthostatic intolerance. - Neuroinflammation
Inflammatory changes in the nervous system may result in cognitive impairment, headaches, and mood disturbances.³
Homoeopathic Perspective
Homoeopathy considers disease as a disturbance of the vital force, manifested through characteristic physical and mental symptoms. Treatment is based on the totality of symptoms and individualized remedy selection.⁶
Post-viral states may arise due to weakened vitality following infection, suppression of acute disease, or activation of underlying miasmatic tendencies. Homoeopathic treatment aims to restore balance and enhance the body’s natural healing processes.
Homoeopathic Therapeutics Indicated in Post-Viral Sequelae
Post Viral Weakness
Sarcolacticum Acidicum
The most violent form of Epidemic influenza, especially with violent and retching and greatest prostration, when Arsenic had .
Gelsemium sempervirens
Indicated in post-viral weakness with heaviness, trembling, dullness, and mental sluggishness, often following influenza-like
Kali phosphoricum
Indicated in nervous exhaustion, mental fatigue, irritability, and insomnia following
Post Viral Neuralgia
Tarentula Cubensis
Adapted to the most severe types of inflammation and pain, early and persistent
Arsenic Album
Trembling, twitching, spasms, weakness, heaviness, uneasiness. Cramps in calves. Burning pains. Peripheral
Post Viral Cough
Sanguinaria Canadensis
Spasmodic cough after influenza and after whooping-cough. Tickling behind sternum, causes a constant hacking cough; worse at night on lying down. Must sit up in bed
Pertussinum
When all remedies fail to relieve, Pertussinum in 1M will help
Post Viral Arthralgia
Lycopersicum
Marked symptoms of rheumatism and influenza. Severe aching pains all over body. Pains left after influenza
Post Viral Insomnia
Avena sativa
Best tonic for debility after exhausting diseases
Post Viral Hairloss
Thallium Metallicum
Hair falls off with great rapidity. Baldness after pthisis
Conclusion
Post-viral sequelae represent an increasingly recognized clinical condition characterized by persistent symptoms following viral infections. The pathophysiology involves immune dysregulation, persistent inflammation, vascular dysfunction, and neurological involvement. Conventional treatment is largely supportive and focuses on symptomatic relief. Homoeopathy, through its individualized and holistic approach, may offer a complementary strategy for managing post-viral complications and improving patient recovery.
References
- Johnston R, Sonnappa S, Goddings AL, et al. Post-COVID syndrome: clinical presentation and management. Paediatr Respir Rev. 2025.
- Gupta G, Buonsenso D, Wood J, et al. Mechanistic insights into long COVID. Compr Physiol. 2025.
- Struhal W, Almamoori D. Neurological sequelae of post-COVID-19 syndrome. J Neurol Sci. 2025.
- Sekar P, Dominic M, Balakrishnan S, et al. Post-COVID-19 complications: pathophysiological insights. J Pharm Bioallied Sci. 2025;17(Suppl 3):S2557-S2559.
- Verma N, Kashyap R. Post-COVID manifestations: a comprehensive review. Int Acad Res J Intern Med Public Health. 2024.
- Hahnemann S. Organon of Medicine. 6th ed. New Delhi: B Jain Publishers; 2013.
- Boericke W. Pocket Manual of Homoeopathic Materia Medica. New Delhi: B Jain Publishers.
- Schroyens F, editor. Synthesis: Repertorium Homoeopathicum Syntheticum. 9th ed. New Delhi: B Jain Publishers; 2004.
Dr Parvathinandha Rajan
PG Scholar – Department of Medicine
FMHMC
Guide: Dr Dolphin J Karat
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