Mitochondrial function
Organic Acid Testing (OAT) — the primary driver of post-exertional fatigue
Long Covid recovery · Kerala, India
treated at the root.
If months have passed and you are still not yourself — you are not imagining it. Long COVID is real, and it responds to a different kind of medicine.
Functional diagnostics · Panchakarma · Ozone therapy · Ayurvedic immune restoration. Guests from the Netherlands, USA, Germany, and 37 more countries.

Functional diagnostics · Doctor-supervised
NABH Accredited
UNESCO Recognised
40+ Countries
Functional Diagnostics
Ozone Therapy
Ayurveda + Functional Medicine
Integrated Care
5,000+
Patients treated
20+
Specialist doctors
30+
Programmes offered
8
Healing systems
are real
Disproportionate exhaustion following minimal physical or cognitive activity. Often worsened by pushing through — a hallmark feature of Long COVID that distinguishes it from ordinary tiredness.
Cognitive impairment — difficulty concentrating, memory lapses, word-finding problems, and mental slowness — often described as thinking through cotton wool. Neuroinflammation and reduced cerebral circulation are key drivers.
Persistent shortness of breath, chest tightness, and reduced exercise tolerance — even in patients who had mild initial COVID illness and show normal lung function on standard tests.
Muscle aches, joint pain, headaches, and neuropathic symptoms — often migratory and inconsistent, reflecting underlying inflammatory and autonomic nervous system dysregulation.
Recurring infections, allergic responses, and autoimmune-like symptoms reflecting persistent immune activation and the failure to return to immune homeostasis following the initial viral insult.
Disrupted sleep patterns, heart rate variability, orthostatic intolerance (POTS-like symptoms), and temperature dysregulation — reflecting autonomic nervous system damage that standard cardiology assessments often miss.
needs this approach
The conventional gap
Long COVID does not fit neatly into any single medical specialty. Neurologists find no lesion. Cardiologists find no structural problem. Pulmonologists find normal lung function. Rheumatologists find no inflammatory markers on standard panels. Each specialist treats their piece — and nobody manages the whole.
Why this fills it
Long COVID is a multi-system condition. It requires a multi-system approach — one that investigates the root mechanisms simultaneously, not in isolated specialties. Combined with Ayurveda’s understanding of post-illness recovery, immune restoration, and nervous system regeneration, the work at Tigris Valley addresses Long COVID at every level it operates.

A full clinical picture, not a single specialty
What Tigris Valley investigates
Where standard medicine stops, our functional diagnostic workup begins.
Organic Acid Testing (OAT) — the primary driver of post-exertional fatigue
Reactivation markers for EBV, CMV, and HHV-6
A panel for persistent immune activation that standard tests miss
The COVID–gut axis and its systemic effects
HRV analysis and tilt response for POTS-like patterns
Cortisol, thyroid, and sex hormone dysregulation after COVID
Vitamin D, B12, zinc, magnesium, and glutathione reserves
Neurofilament light chain and related inflammatory markers
clinical framework
Every Long COVID programme at Tigris Valley is built around the same clinical sequence — investigate first, then treat what you find. Nothing is guesswork and nothing is generic.
Comprehensive lab testing on Day 1 — mitochondrial function, inflammatory markers, viral persistence, gut health, hormonal profile, and nutritional status. We test what standard medicine does not.
Targeted IV and herbal protocols to resolve persistent immune activation, restore immune homeostasis, and address the viral persistence driving ongoing symptoms.
Classical Panchakarma — Virechana and Basti — to clear the inflammatory load and post-viral toxins from the body's channels and restore the conditions for genuine recovery.
Medical ozone therapy via MAH — directly addressing viral persistence, cellular oxygen utilisation, mitochondrial dysfunction, and systemic inflammation.
Ayurvedic and Unani immune-restorative formulations — including Ashwagandha, Guduchi, Shilajit, and Chyawanprash — prescribed at therapeutic dosages for your specific presentation.
Paced breathing (Pranayama), gentle yoga nidra, and Vagus nerve stimulation protocols — specifically designed for post-exertional management and autonomic nervous system restoration.
that drive recovery
Each therapy is selected for its mechanism in Long COVID — not as a general wellness offering.

Nasya — neurological channels, not a sinus rinse
Medicated oils administered through the nasal passages directly access the neurological channels — the olfactory pathway, cranial nerves, and the channels connecting the sinuses to the brain. Particularly effective for Long COVID brain fog, anosmia, headaches, and neurological fatigue.

Cellular oxygen, viral persistence, mitochondrial drive

Guduchi, Ashwagandha, Shilajit — clinical dosages

Basti, the 4R protocol, the COVID–gut axis

Parasympathetic reset for sleep, fatigue, and HPA

Paced breathing prescribed as medicine
why duration matters
Long COVID is not a condition that resolves in a weekend. The protocols that produce genuine results require adequate time — and the 21-day programme is the one most Long COVID guests choose.
14
Day programme
For: Moderate Long COVID, primary fatigue and fog, 6–18 months post-infection
Full functional diagnostic panel on Day 1
Panchakarma purification — Virechana + Basti series
3 Ozone therapy sessions (MAH protocol)
4 IV Nutritional Therapy sessions — mitochondrial and immune protocol
Nasya, Shirodhara, and Abhyanga daily
Herbal immune restoration programme
Pranayama and yoga nidra — paced daily programme
Gut restoration — full 4R protocol
60-day home protocol with telehealth follow-up
Book this programme21
Day programme
Recommended
For: Severe Long COVID, 18+ months, multiple systems affected, previous treatments failed
Everything in the 14-day programme
Extended functional labs — OAT, viral persistence, autonomic assessment, full hormonal panel
Full 3-phase Panchakarma — complete purification sequence
5 Ozone therapy sessions + photobiomodulation
5 IV Nutritional Therapy sessions — NAD+, Glutathione, high-dose Vitamin C, ALA
Advanced Rasayana therapies in Week 3 — cellular regeneration
Mid-programme lab review — protocol adjusted based on response
Lifestyle medicine coaching — pacing, sleep, stress, return-to-activity plan
90-day home protocol, supplement plan, and telehealth follow-up
Book this programmeLong COVID recovery requires three sequential phases to work effectively: first, purification (removing the inflammatory and toxic load that perpetuates the condition); second, active functional protocols (addressing mitochondrial, immune, and gut dysfunction directly); and third, restoration and consolidation (rebuilding the tissues and systems depleted by months of illness). Each phase takes time — and cannot be meaningfully compressed without sacrificing outcomes. Most guests find that the most significant improvements become apparent in the final days and the weeks following the programme.
week by week
Recovery from Long COVID is not linear — and we will not pretend otherwise. What follows is a realistic account of what most guests experience through the 21-day programme.

01
The first week begins gently and with intention. Comprehensive functional lab testing on Day 1 gives your doctor a complete picture of the mechanisms driving your condition. Panchakarma preparation begins — internal oleation mobilises the toxins and inflammatory debris that have accumulated since your COVID infection.
Primary Panchakarma procedures (Virechana and Basti) are administered from Days 5–7. Herbal immune formulations and gut restoration commence. Daily Shirodhara and Abhyanga begin their work on the nervous system.
Sleep quality begins improving
Reduced inflammatory burden
Gut restoration initiated

02
With the body purified and the inflammatory load reduced, the functional medicine phase begins. IV Nutritional Therapy delivers NAD+, Glutathione, and high-dose Vitamin C directly to cells depleted by months of chronic illness. Ozone sessions begin addressing viral persistence and mitochondrial oxygen utilisation.
Most guests notice meaningful changes in Week 2 — more stable energy, clearer thinking, and less constant muscle ache. Brain fog typically shows the first signs of lifting. Breathlessness begins to ease as ozone and Pranayama work together.
Brain fog beginning to lift
Energy more stable
Reduced muscle pain
Improved sleep continuity

03
The final week is the most restorative. Advanced Rasayana therapies rebuild tissues and systems depleted by Long COVID. Final functional lab testing on Day 20 compares key markers against your Day 1 baseline — mitochondrial function, inflammatory markers, nutritional status, and hormonal profile.
Most guests describe Week 3 as the first time they genuinely feel like themselves again. Lifestyle medicine coaching builds the return-to-activity plan. Discharge includes a 90-day home protocol and scheduled telehealth follow-up.
Significant cognitive restoration
Sustained energy recovery
Breathlessness reduced
Immune markers improved
Recovery from Long COVID is real — but it is not always complete within three weeks. Many guests experience 40–70% symptom improvement by discharge, with continued recovery in the months that follow. The 90-day home protocol and telehealth follow-up are designed to protect and extend those gains.
Europe and beyond
Tigris Valley is located in Kozhikode (Calicut), Kerala — well connected to European cities via Gulf hubs. The journey is manageable, and our team coordinates your arrival from the moment you land.
~11 hrs
KLM · Emirates via Dubai
~9 hrs
Lufthansa · Emirates via Dubai
~18 hrs
Emirates · Qatar Airways via hub
~10 hrs
British Airways · Emirates
~2.5 hrs
IndiGo · Air Arabia · Emirates
~10 hrs
Air France · Emirates via Dubai
Kozhikode International Airport (CCJ) or Kochi (COK) — 45–60 minutes from Tigris Valley by private transfer arranged by our team.
Indian e-Tourist Visa available for Netherlands, Germany, and US passport holders at indianvisaonline.gov.in. Standard approval 48–72 hours. Tigris Valley provides a formal invitation letter upon booking.
Bring a 3–4 week supply of any current medications with a summary from your GP. Our doctors review all medications on Day 1 — particularly important for Long COVID patients who may be on multiple prescriptions.
Bring any previous COVID test results, specialist letters, and lab results. The more your doctor understands your history, the more precisely your programme can be designed.
and beyond
Guests from the Gulf, Europe, and further speak in their own words — recovery, stay, and the work of coming back to themselves.





behind your healing
Every Long Covid programme is designed and overseen by specialists across Ayurveda, Unani, and functional medicine — clinical precision from day one.
about Long Covid care
Straight answers from the clinic — not a sales script. If your case is unusual, say so on the call.
Classical texts call post-viral weakness Jwara Janya Daurbalya. Panchakarma, Rasayana, Shirodhara, and Nasya map onto the drivers modern research names: inflammatory load, mitochondrial depletion, and autonomic disruption. Ayurveda alone is not enough. The programme works because it is joined to functional diagnostics and ozone therapy.
Organic Acid Testing for mitochondrial function; viral reactivation markers (EBV, CMV, HHV-6); a high-sensitivity inflammatory panel; gut health; a full hormonal panel; nutritional status; and autonomic function. Your doctor walks every result with you on Day 3.
They are measured on pre- and post-programme labs. What holds is the 90-day home protocol: food, sleep, pacing, herbs, and follow-up. Guests who keep that work usually continue improving for three to six months. Those who return to the old load may lose some of the gain. Telehealth is there for the long stretch.
The preparation is extended. Purification is slower than for a well guest. Rest days sit in the calendar. Yoga and breathwork are paced so they do not trigger post-exertional malaise. Your Vaidya watches capacity and changes the protocol in the room, not on a template.
Guests arrive from three months to several years after COVID. If you are still in acute illness, or less than six weeks out, wait until that phase has settled. Unsure — the pre-booking medical call will say.
In most cases, yes. Day 1 is a full medication review — antihistamines, LDN, antivirals, supplements. We coordinate with your home physician. Nothing is stopped without clinical reason.
Many Long COVID guests do. Coordinators meet you at the airport. The day is built around your energy. Nursing is available around the clock. Guests who arrive alone often call this the safest medical room they have been in since falling ill.
A free 20-minute call with Dr. Faheem Najeeb. Bring your symptom history, any labs, and your current list. It is a clinical conversation. Book below, or WhatsApp +91 91070 40040.

Kaithappoyil, in the Western Ghats
a free 20-minute call
You have spent long enough being told your tests are normal. The first call is with Dr. Faheem Najeeb — no sales team, no script.
Tigris Valley

Kaithappoyil, in the Western Ghats.
Markaz Knowledge City Road, Kaithappoyil, Adivaram, Kerala
Get directions +91 90726 61622 reservation@tigrisvalley.com
Kaithappoyil, Western Ghats
Before you leave
A physician reads every letter. Book a consultation, or send an inquiry — reservations answers the same day.