
LONG COVID AND POST VIRAL FATIGUE
Breathe easier. Think clearer. Feel like yourself again.
Safe, at-home Hyperbaric Oxygen Therapy (HBOT) to improve oxygen delivery, calm inflammation, support cellular energy, and ease fatigue, brain fog and breathlessness associated with Long COVID and post-viral fatigue with a tailored plan and unlimited sessions.
Why you still don’t feel like yourself
You were told to rest, but the symptoms linger: crushing fatigue, brain fog, breathlessness, chest tightness, headaches, poor sleep, heart-rate spikes, dizziness and that unsettling sense you’re not who you were before.
After a viral illness, tissues can be low in oxygen and stuck in inflammation, and your cells may struggle to make the energy you need day to day.
At Cocoon, we deliver and set up a soft-shell hyperbaric chamber in your home and support you through a gentle plan that fits real life.
How HBOT helps with Long COVID and Post Viral Fatigue
Increases dissolved oxygen in blood and cerebrospinal fluid under gentle pressure, helping oxygen reach areas with reduced circulation.
Calms inflammation and oxidative stress, which are linked to chest tightness, headaches, and widespread discomfort.
Supports mitochondrial function (cell energy), helping restore day-to-day stamina and mental clarity.
Improves microcirculation, which may ease breathlessness and support tissue repair.
Supports autonomic balance - we screen for dysautonomia and tailor pacing and HBOT scheduling to reduce “crash” risk.
Benefits of At-Home HBOT for Long COVID and Post Viral Fatigue
-
More Energy & Less Post-Exertional Payback
In a soft-shell hyperbaric chamber, gentle pressure helps more oxygen dissolve into your blood and fluids. That extra oxygen supports mitochondrial ATP production, so everyday activity becomes more sustainable and crashes are less likely.
-
Clearer Thinking & Better Memory
By improving oxygen delivery and calming neuroinflammation, Hyperbaric Oxygen Therapy (HBOT) can reduce brain fog, word-finding issues and slowed processing - helping you focus, plan and get through tasks without the same mental drain.
-
Easier Breathing & Less Chest Tightness
Enhanced oxygenation and improved micro-circulation can ease breathlessness and chest discomfort common in Long COVID, supporting more comfortable walks, conversations and daily routines.
-
Support for Dizziness & Heart-Rate Spikes (Dysautonomia/POTS)
We screen for dysautonomia/POTS and tailor your plan (session timing, pressure, pacing). The aim is steadier orthostatic tolerance, fewer dizzy spells and more predictable energy across the day.
-
Better Sleep & Steadier Mood
Many people notice deeper, more restorative sleep as sessions accumulate. With improved rest and reduced inflammation, anxiety and irritability often settle, making day-to-day recovery feel calmer and more manageable.
Why Choose Cocoon Hyperbaric Chambers
-
One of only two diploma-qualified Hyperbaric Therapy providers in NZ, following strict, medically informed safety protocols.
-
Dr Gary Dennis’ own recovery from brain injury and cancer brings unmatched insight and care.
-
The only NZ provider offering Functional Assessments alongside HBOT.
-
Premium chambers and expert care at honest, upfront pricing with no hidden costs.
-
Enjoy 24/7 home therapy with delivery, installation, and training.
-
Continuous guidance, check-ins, and adjustments to your plan for the best possible results.
-
Premium soft-shell design, non-toxic materials, sealed seams, and high-performance compressor with filtration.
-
Emergency pressure release, manual controls, dual pressure gauges, and clear viewing windows.
-
Designed for 7-days-a-week therapy, delivering up to 40% better outcomes than intermittent treatment.
-
Quiet operation, air dehumidifier, inside/outside controls and compact size
FAQs
-
Many people with Long COVID use mild HBOT to support energy, cognition, breathing comfort and recovery. It raises dissolved oxygen, helps calm inflammation and supports cellular energy.
-
Some notice better sleep, headaches or clarity within 1–2 weeks; others see steady gains across 6–12 weeks. Every body heals at its own pace.
-
Most plans suggest 60–90 minute sessions on most days during the rental period. We tailor frequency and pressure to your symptom stability and crash threshold.
-
Yes. HBOT can be introduced anytime once you’re medically stable. Many start months after illness and still see meaningful improvements.
-
Yes. If present, we tailor your plan and, when appropriate, liaise with your GP/specialist.
-
HBOT is well tolerated for most people. We review your medical history and medications first and will advise if we need GP/specialist clearance.
-
Most people experience none. Occasionally mild ear pressure (like on a plane) or temporary fatigue after early sessions. We teach simple techniques to clear the ears and pace your plan.
-
An oxygen concentrator provides oxygen at normal pressure. HBOT uses gentle pressure so oxygen dissolves more deeply in blood and fluids, delivering higher amounts to tissues.
-
We use soft-shell, mild HBOT chambers set to gentle therapeutic pressures appropriate for home use, configured to your plan.
-
Pricing is a flat-rate 6-week rental with no per-session fees. In NZ, HBOT is generally not covered by ACC or standard health insurance outside hospital indications.
-
No referral is required. We’ll complete a health screen during your consultation and coordinate with your clinician if needed.
-
We deliver, install and test the chamber, train you (and a support person if you like), and provide ongoing support throughout your rental.

“The cocoon hyperbaric oxygen chamber is sensational. don't know, but feel sure, that it has been a life saver. Thanks Gary. Your professionalism and dedication and support is remarkable. I warmly recommend the cocoon to anyone considering the benefits of HBOT. Thank you.”
- John
Ready to start?
Book your consultation to begin a personalised at-home HBOT programme for Long COVID & post-viral fatigue - with unlimited sessions and expert support.