Information for peace of mind
Is it safe?
Your peace of mind
starts here.
Yes, hyperbaric therapy is generally safe when appropriately indicated, supervised and carried out with suitable protocols. Serious complications are uncommon; most adverse effects are mild and temporary. [1]
with a good assessment.
Clear information. Personalized care.
Confidence with a foundation
Four foundations for
a safe session.
Your peace of mind deserves concrete answers. These are aspects that should be part of care and that you can ask about before starting.
Understanding your health
The assessment reviews your medical history, medications and contraindications to determine whether treatment is appropriate. [2]
An appropriate protocol
Pressure, oxygen and duration should be determined for each person and follow the manufacturer’s instructions. [2]
Supervision and communication
Trained staff should supervise throughout the session and be able to address any discomfort. Before entering, learn how to communicate with them. [3]
Well-maintained equipment and surroundings
Maintenance, equipment checks and fire prevention are essential elements of safe practice. [3]
Familiarity can help you feel more comfortable
An experience you can
understand, step by step.
- 01 / AT THE START
Gradual adjustment
Pressure increases gradually. Your ears may feel blocked, much like during a flight. The team explains how to equalize pressure; swallowing or yawning may help. Report any pain. [1] [2]
- 02 / DURING THE SESSION
Breathe and communicate
You remain seated or reclined according to the equipment and breathe normally. If you feel anxious or uncomfortable, let the staff know so they can assess how to proceed. [4]
- 03 / AT THE END
A gradual return
Pressure gradually returns to ambient levels. Before leaving, report any discomfort and receive your instructions. [4]
Knowing what to expect helps too
Possible effects.
Practical precautions.
Understanding the risks helps you recognize discomfort promptly. An assessment and adherence to the protocol help reduce risks; they do not eliminate them entirely.
Ears, sinuses and comfort
What to report
Ear pressure or pain, sinus discomfort and anxiety about an enclosed space may occur. Temporary vision changes can also develop. You do not need to tolerate pain: tell the staff. [1] [2]
Less common risks
Why the protocol matters
Possible complications include ear injury, a collapsed lung and seizures from oxygen toxicity. Blood glucose may fall, particularly in people with insulin-treated diabetes. Prolonged treatments may also contribute to cataracts. [1]
Prevention at every session
Appropriate items and clothing
Concentrated oxygen increases the risk of fire, which can cause serious injury. Follow the rules for compatible clothing and permitted products and objects. Phones, batteries, lighters and other items require restrictions; do not bring anything in without staff authorization. [3]
Listen to your body
When to seek help
Report any discomfort during the session. If you later develop trouble breathing, chest pain, fainting or seizures, seek emergency care. Do not wait for a WhatsApp response. [4]
Care designed around you
Tell us what
we need to know.
Share this information at your assessment. Having one of these conditions does not always prevent treatment, but may require adapting the plan, postponing it or using a specialist service.
- Lung problems: respiratory disease, chest surgery or a history of pneumothorax. Treatment must not begin with an untreated pneumothorax. [2]
- Ears and airways: recent ear surgery, difficulty equalizing pressure, a cold, congestion or fever. [2]
- Medications and devices: report all treatments, chemotherapy and devices such as pacemakers or medication pumps so their compatibility can be reviewed. [4]
- Other situations: diabetes, a history of seizures, pregnancy or possible pregnancy, and anxiety in enclosed spaces. These require individual assessment. [1] [4]
Arrive with confidence
Getting ready
can be simple.
- Bring your information: a medication list, relevant medical history and questions. Do not stop or adjust treatment on your own.
- Confirm the instructions: ask what clothing to wear and which skin, makeup and hair products to avoid. Instructions depend on the equipment and protocol. [3]
- Report any changes: fever, congestion, vomiting or feeling unwell before your appointment may mean it should be postponed. [5]
- If you have diabetes: ask how to organize meals, medication and glucose checks that day. [4]
- Ask freely: find out the proposed duration, who will supervise and how to request help. Your participation is part of your care.
Clear answers
More information.
Greater peace of mind.
We want you to make an informed decision and feel comfortable asking all your questions.
Does the session hurt?
You should not have to endure pain. Ear pressure is common; report it immediately if it becomes painful or you cannot equalize it. Staff should assess the discomfort. [2]
What if I have claustrophobia?
Discuss it before booking. Learning about the equipment and communication can help you prepare. Tolerance is assessed individually; do not take sedatives on your own. [2]
Can I continue my day afterward?
It is usually an outpatient procedure. If you feel well and the team approves, you may resume your activities; if you feel dizzy or drowsy, avoid driving and ask for guidance. [4]
Is it appropriate during pregnancy?
Report pregnancy or possible pregnancy before starting. Elective sessions should not begin without specialist assessment; certain emergencies have different criteria and are treated in hospital. [4]
Do more sessions mean better results?
The number should reflect an indication and your progress. We offer individual sessions and plans of 5 or 10 sessions; choosing a package does not replace an assessment. Learn how to organize your plan.
What is the first step?
Book an assessment. We discuss your reason for visiting, medical history and the questions you want answered. You can also explore our guide to benefits and applications.
Hiperbárica Costa Rica · Curridabat
Your next decision
can begin with peace of mind.
Explore the experience, ask your questions and find out whether it is appropriate for you.
Medical sources and scope of this information
General information consulted on October 15, 2026. An individual assessment determines whether starting is appropriate. These sources describe the therapy and its safety measures; they do not certify or endorse our center or equipment.
- Mayo Clinic: safety, possible adverse effects and preparation.
- Johns Hopkins Medicine: precautions and complications of hyperbaric therapy.
- FDA: recommendations for the safe use of hyperbaric devices, August 2025.
- Cleveland Clinic: assessment, experience, pregnancy and aftercare.
- UCLA Health: patient preparation and health changes before a session.