Long COVID Recovery Using Hyperbaric Oxygen Therapy: What Recent Research Reveals
Millions of people have recovered from the acute phase of COVID-19, yet many continue to experience lingering symptoms that last weeks, months, or even years. This condition, known as Long COVID or post-COVID syndrome, can include persistent fatigue, brain fog, shortness of breath, pain, sleep disturbances, and a significant drop in overall quality of life. Traditional treatments often focus on symptom management rather than the underlying causes.
For individuals seeking a more comprehensive approach, many are now exploring HBOT for Long COVID. Hyperbaric Oxygen Therapy is a noninvasive treatment that raises oxygen levels in the body and may support deeper healing processes. Early studies suggest promising results for energy, cognition, inflammation, and general well-being.
What Hyperbaric Oxygen Therapy Is and Why It May Help
Hyperbaric Oxygen Therapy involves breathing pure oxygen while resting inside a pressurized chamber. The increased pressure allows the body to absorb oxygen at levels far higher than normal. This oxygen reaches tissues affected by inflammation or reduced circulation, which is common in Long COVID.
Current research suggests the following potential benefits:
- Improved microvascular repair and circulation
- Reduced inflammation and oxidative stress
- Enhanced mitochondrial function and cellular energy production
- Support for neuroplasticity and brain perfusion
- Increased tissue healing capacity, similar to the benefits seen in tissue repair applications
Learn more about How HBOT Works and how it may help address several core issues believed to contribute to Long COVID.
What Research Shows About HBOT for Long COVID
Although Long COVID is still being studied, the growing research around Hyperbaric Oxygen Therapy is encouraging in terms of using HBOT to help Long COVID patients recover.
A review of studies published between 2021 and 2024 found consistent improvements in fatigue, cognitive problems, sleep quality, pain levels, and overall day-to-day functioning. These studies also reported that HBOT is generally safe when supervised by trained medical staff.
A long-term, sham-controlled study published in 2024 showed sustained improvements up to one year after treatment. These findings add scientific support to the potential of HBOT as a recovery tool. You can read more in this peer-reviewed research on HBOT for Long COVID.
Additional trials continue to build momentum. A separate study highlighted meaningful gains in sleep, mental health, and daily functioning. These outcomes align with ongoing clinical trial findings on HBOT.
Smaller observational studies have also shown improvements in circulation, cognitive clarity, cardiopulmonary performance, energy, and endurance. While HBOT is not a cure and individual responses vary, the scientific foundation continues to strengthen.
Why Certain Symptoms Respond Well to HBOT
Long COVID appears to affect multiple systems throughout the body. Many researchers believe it stems from persistent inflammation, vascular injury, mitochondrial dysfunction, oxidative stress, and impaired tissue healing.
Hyperbaric Oxygen Therapy supports several of these core mechanisms:
- Improved oxygenation and blood flow to damaged microvascular areas
- Enhanced mitochondrial function and metabolic efficiency
- Reduction in inflammation, helping individuals experiencing chronic pain and inflammation
- Increased oxygen delivery and neuroplastic support for cognitive symptoms
- Improved brain circulation and clarity, consistent with research on HBOT and cognitive recovery
- Support for cardiopulmonary healing and exercise tolerance
These combined effects help explain why HBOT may offer relief for several different Long COVID symptoms.
What To Know Before Beginning HBOT
Hyperbaric Oxygen Therapy has an excellent safety profile when performed by qualified professionals. Temporary ear pressure, mild fatigue, or short-term vision changes are possible but usually resolve quickly.
Treatment protocols for Long COVID are not one-size-fits-all. Your care team should customize the number of sessions, pressure settings, and duration based on your health status and goals.
It is important to set realistic expectations. Many patients experience meaningful improvement, while others progress more gradually. HBOT works best as part of a comprehensive recovery plan, which may include nutrition, physical rehabilitation, sleep support, and stress management. Learn more on our page about immune system support.
Individuals with existing neurological conditions may also find added benefit through improved circulation and brain oxygenation. Learn more on our neurological recovery page.
Always consult a trained hyperbaric medicine provider to determine whether HBOT is appropriate for your health profile. Here’s what to expect at MD Hyperbaric when getting started with hyperbaric oxygen therapy.
Final Thoughts
Hyperbaric Oxygen Therapy is emerging as one of the more promising approaches for Long COVID recovery. Current studies suggest that HBOT may improve cognitive clarity, energy, sleep quality, circulation, and general well-being. Although it is not a cure, it provides a valuable pathway for individuals seeking a deeper level of healing beyond symptom management.
With proper guidance and a personalized approach, many patients find that HBOT helps restore clarity, focus, physical ability, and overall quality of life.
To learn more or to see if Hyperbaric Oxygen Therapy may be appropriate for your recovery, explore our full overview of HBOT for Long COVID.
Disclaimer: This article is for informational purposes only and does not constitute medical or insurance advice. Please consult a qualified healthcare provider for personal recommendations and check with your insurance company for current policy details.
What Our Patients Say
Real Patients. Real Results
Post-Surgical Recovery“Getting HBOT helped me a lot with my wound healing. I noticed my scars remarkably lightened. My mood and energy levels improved as well in just three weeks of getting two sessions each week — despite my demanding work schedule, I felt like I had more energy.”Namae
Inflammatory Bowel Disease“I was prescribed HBOT by my specialist to treat a complex and traumatic issue stemming from IBD and reconstructive GI surgeries. I did a full course and absolutely saw improvement right away. The staff are amazing, very professional and caring.”Kathleen
Injury Recovery“I broke my wrist playing tennis and came to MD Hyperbaric Westchester to help speed up my recovery. After a few sessions I have felt a tremendous improvement in energy, sleep — and my doctor says my wrist is healing remarkably well.”John
Cancer Adjunct“I'm a breast cancer survivor, and after radiation near my lungs, I thought this treatment might be useful. I can feel a difference in my breathing and cognition. I definitely recommend it if your body has gone through a traumatic experience.”Aziza
Wellness“I recently began using Hyperbaric Oxygen Therapy at MD Hyperbaric, and it's been one of the most unique and impactful wellness treatments I've explored. I was drawn in by the potential benefits for anxiety, fatigue, and overall cellular repair, but I didn't expect it to feel this restorative — and my skin is glowing too!”Olesia
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Frequently Asked Questions
Hyperbaric Oxygen Therapy (HBOT) is a proven treatment that enhances healing by flooding the body with oxygen. Used for over 100 years, it supports brain health, anti-aging, athletic recovery, and medical conditions by boosting oxygen in blood, tissues, and organs. Patients breathe 100% oxygen in a pressurized chamber, accelerating recovery and promoting cellular repair.
HBOT is FDA-approved for 14 conditions like burns, carbon monoxide poisoning, and non-healing wounds. Emerging research also supports its use for post-surgical recovery, brain injury, fatigue, inflammation, athletic recovery, and anti-aging. Our medical team will assess if HBOT is right for you.
Yes, HBOT is safe when properly supervised. At MD Hyperbaric, treatments are protocol-driven, medically overseen, and administered by certified staff. Our Medical Director and onsite Safety Director ensure every session is carefully monitored, and we continuously update our protocols based on the latest research to prioritize patient safety.
Typically, most treatment sessions are approximately 60 minutes, though some conditions may require up to 90 or 120 minutes. Pressurization and depressurization may add about 20 minutes to the appointment, so you should plan for about 90 minutes for your visit.
The number of sessions depends on the condition being treated. Some patients may benefit from a few sessions, while others may require a more extended treatment plan. A typical protocol will involve 10-40 daily sessions to build up oxygen in the cells. Our Medical Director will recommend a specific treatment plan to address your goals and needs.
Prior to treatment, please try to avoid alcohol or carbonated drinks. It is best to avoid smoking and other tobacco products during your treatment period, as they may interfere with the body's ability to transport oxygen. Otherwise, there are no restrictions for food or activity before or after your treatment. We encourage you to have healthy meals and stay hydrated.
Most patients find HBOT sessions relaxing. You will rest comfortably in a 7.5-foot-long steel chamber, breathing 100% pure oxygen through a mask. During pressurization and depressurization, you may feel pressure changes similar to airplane travel. A trained technician will monitor you throughout the session.
The term "dive" is used because the process simulates the experience of a deep-sea dive in a pressurized environment. Hyperbaric Oxygen Therapy has deep roots in diving as an important therapy for treating divers experiencing decompression sickness.
At MD Hyperbaric, we use the FDA-cleared OxyHealth Fortius420, a spacious hard-shell chamber delivering 100% medical-grade oxygen via mask. It operates up to 3.0 ATA, allows tailored pressures, supports air breaks, and includes three windows for comfort and safety.
At MD Hyperbaric, we use hard-shell chambers that deliver 100% medical-grade oxygen at higher pressures for superior therapeutic benefits. Soft-shell chambers operate at lower pressures without medical-grade oxygen, making them less effective for medical treatment.
Our team will assess your medical history and specific circumstances through an intake process. An initial evaluation with certified staff and the Medical Director will determine your eligibility for HBOT.
No referral is needed. Our Medical Director will review your intake forms and prescribe HBOT if appropriate. If you have a prescription from a provider, we will coordinate with them. For serious health conditions, we may recommend getting clearance from your physician.
Some MD Hyperbaric centers accept insurance for certain on-label conditions — the FDA-recognized indications for which HBOT is an established standard of care. Whether insurance applies depends on your diagnosis, your plan, and the center you visit, so please contact your local center to confirm. Where insurance does not apply, HBOT is a self-pay treatment: most FSA/HSA plans allow reimbursement, and we can provide a superbill and receipt to help you submit a claim.
It depends on how you pay. For insurance-covered treatment at participating centers, your cost depends on your plan's deductible, copay, and coinsurance — the center verifies your benefits and explains expected costs before treatment begins. For self-pay treatment, we offer a variety of pricing options designed to suit different medical and financial needs, including pay-as-you-go and package options at reduced rates when purchased upfront. Please contact us to discuss pricing and options. We accept cash, credit, or check.