
SUPPORTING CANCER RECOVERY (ADJUNCT CARE)
Gentle support you can feel, right at home.
Safe, at-home Hyperbaric Oxygen Therapy (HBOT) used alongside your oncology care to improve tissue oxygenation and microcirculation, calm inflammation and swelling, support wound and skin healing after surgery or radiation, and restore day-to-day energy - with a tailored plan and unlimited sessions.
You don’t have to do this alone.
Cancer asks a lot of you - and not just on treatment days.
Bone-deep fatigue. Sore, fragile skin after radiation. Wounds that take too long to heal. Mouth ulcers that make eating hard. Breathlessness walking room to room. Broken sleep. A mind that won’t switch off. It’s a lot to carry, and you deserve comfort, privacy, and care that fits around your life.
With Cocoon, you can support your recovery without leaving home. We deliver and set up a soft-shell hyperbaric chamber in your chosen space and guide you through a gentle, at-home HBOT programme that matches your energy, schedule, and goals - whether you’re in treatment, between treatments, recovering after surgery/radiation, or rebuilding months later.
How HBOT helps Patients in Cancer Care
Inside a gently pressurised soft-shell chamber, Hyperbaric Oxygen Therapy (HBOT) increases the amount of oxygen dissolved in your plasma and other body fluids, so oxygen can reach tissues even when local blood flow is reduced. This improved perfusion (blood flow to tissue) supports cellular energy, calms inflammation and helps healing tissues feel more comfortable.
HBOT is used alongside medical care to support healthy tissue repair and comfort; it is not a treatment for cancer.
What this can mean during or after cancer care
Radiation-affected skin & soft tissue – Improved perfusion and reduced local inflammation/oedema can support comfort in irradiated skin and soft tissues.
Comfort & mobility – Better microcirculation helps settle swelling, so moving, resting and sleeping feel easier.
Energy & clarity – Supporting cellular (mitochondrial) energy can help reduce fatigue and brain fog, so you can do a bit more of what matters each day.
Wound healing after surgery – More available oxygen supports collagen formation and capillary growth (angiogenesis), helping wounds progress.
Whole-person support – Private, quiet sessions at home may lower stress and improve sleep quality, which underpin recovery.
HBOT is an adjunct supportive therapy, not a cancer treatment. We tailor session timing and frequency to your stage of recovery and, if you wish, coordinate with your clinicians.
Benefits of At-Home HBOT for Patients in People in Cancer Care
-
Supports Post-Surgery Wound Healing
Increased dissolved oxygen helps the repair healthy cells and can stimulate your body to release growth factors and stem cells that promote healing - so surgical and treatment-related wounds can progress more comfortably.
-
Comfort For Radiation-Affected Skin & Soft Tissue
By improving perfusion (blood flow to tissue) and helping calm local inflammation/oedema, HBOT may ease tightness, tenderness and stiffness in irradiated areas.
-
Less Swelling, Easier Movement
Better microcirculation can help settle oedema, making everyday tasks, rest and sleep feel more manageable.
-
More Steady Energy & Clearer Head
Supporting cellular (mitochondrial) energy can reduce fatigue and brain fog, helping you do a little more of what matters each day.
-
Better Sleep & Overall Wellbeing at Home
Quiet, private sessions in your own space can lower stress, support sleep quality, and enhance day-to-day quality of life while you recover.
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
-
Often yes, but timing is case-by-case. Some medicines require spacing HBOT away from infusion days. We review your regimen and, if you wish, coordinate with your oncologist before starting.
-
HBOT increases tissue oxygenation and micro-perfusion, helping calm inflammation/oedema and support healing in radiation-affected skin and soft tissues. Many people use HBOT months or years after radiation for late effects.
-
Yes - by supporting collagen formation, granulation tissue and angiogenesis (new capillaries), HBOT can aid post-operative wound healing and flap/graft viability when used adjunct to surgical care.
-
Gentle pressure lets more oxygen dissolve in plasma and body fluids, improving perfusion to stressed tissues. That supports cellular energy (mitochondrial ATP), collagen production, and capillary growth, and helps calm inflammation.
-
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.
-
We deliver, install and test the chamber, train you (and a support person if you like), and provide ongoing support throughout your rental.
-
Relax in a soft-shell chamber while it gently pressurises. You may feel mild ear pressure that eases in minutes. Most people read, listen to music, or nap for 60–90 minutes.
-
No referral is required. We’ll complete a health screen during your consultation and coordinate with your clinician if needed.
-
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.

“Living with metastatic breast cancer, daily Cocoon sessions eased pain and helped me cope and Gary’s genuine support meant everything. I recommend his approach to HBOT without hesitation.”
- Ingrid
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.