Hyperbaric Oxygen Therapy (HBOT)
Hyperbaric Oxygen Therapy involves breathing pure oxygen in a pressurized environment, which can aid in wound healing, improve cognitive function, & support recovery from traumatic brain injuries & long COVID.
Evidence last reviewed: 05 Apr 2026
Moderate evidence supports HBOT's effectiveness in improving neurocognitive function, hearing recovery, and healing diabetic foot ulcers. While promising, further research is needed to fully understand its benefits and limitations.
Hearing gainPatients with sudden sensorineural hearing loss · Systematic review and meta-analysisModerate
HBOT showed a mean absolute hearing gain & improved odds of hearing recovery.
Hearing recoveryPatients with sudden sensorineural hearing loss · Systematic review and meta-analysisModerate
HBOT was significantly associated with improved hearing outcomes over control treatments.
Diabetic foot ulcer healingPatients with diabetic foot ulcers · Systematic review and meta-analysisModerate
HBOT increased the healing rate & shortened the healing time of diabetic foot ulcers.
Neurocognitive function improvementPost-COVID condition patients · Randomized controlled trialModerate
HBOT improved neurocognitive functions & symptoms in post-COVID condition patients.
Forms & usage▾
Typically administered in specialized clinics under professional supervision.