When a wound does not heal the way it should, patients often find themselves searching for answers. They may have tried dressings, antibiotics, offloading, compression, or repeated office visits without seeing the progress they expected. For many people, the most difficult part is not only the wound itself, but the uncertainty that comes with it. Why is healing taking so long? Is there an infection? Is circulation part of the problem? Are there more advanced options available?
Hyperbaric oxygen therapy, commonly called HBOT, is one advanced option that may be recommended for certain non-healing wounds and medical conditions. However, it is not a casual wellness treatment or a one-size-fits-all solution. It is a medical therapy that should be considered carefully, prescribed appropriately, and performed under qualified supervision. For patients exploring hyperbaric oxygen therapy treatment, the best starting point is understanding what questions to ask before beginning care.
Start With the Most Important Question: Why Is My Wound Not Healing?
Before any advanced therapy is recommended, the first step is identifying why the wound has stalled. A wound may remain open because of poor blood flow, uncontrolled blood sugar, pressure, infection, swelling, nerve damage, previous radiation injury, or another underlying medical concern. Treating the surface of the wound without addressing the reason it is not healing may lead to frustration and delayed progress.
This is one reason professional wound evaluation is so important. A wound care team can assess the wound’s size, depth, drainage, tissue quality, signs of infection, and surrounding skin. They can also consider the patient’s medical history, circulation, medications, nutrition, mobility, and risk factors. Innovative Wound Care Specialists notes that patients should consider professional help when a wound has lasted more than a month and has not decreased in size by at least 50%, or when symptoms such as drainage, foul odor, severe pain, fever, swelling, or redness suggest possible infection.
HBOT may be helpful in selected cases because oxygen plays a major role in tissue repair. Johns Hopkins Medicine explains that HBOT can help wound healing by bringing oxygen-rich plasma to tissue that has been deprived of oxygen.
Still, the therapy works best when it is part of a complete plan rather than a stand-alone answer.
Ask Whether Your Condition Is an Appropriate Use for HBOT
Patients should ask directly whether their wound or condition is one for which HBOT is commonly used or medically recognized. The U.S. Food and Drug Administration states that hyperbaric chambers have been cleared for several conditions, including carbon monoxide poisoning, decompression sickness, gas gangrene, crush injury, radiation injury, compromised skin graft flaps, severe skin and bone infections, and non-healing diabetic foot ulcers.
Innovative Wound Care Specialists lists HBOT as a treatment option for several wound-related concerns, including diabetic and neuropathic ulcers, pressure injuries, venous stasis ulcers, problem surgical wounds, arterial ulcers, trauma wounds, chronic infections, compromised skin graft flaps, osteomyelitis, necrotizing fasciitis, and other qualifying conditions.
This distinction matters. HBOT is sometimes promoted online for conditions that are not supported by evidence or FDA clearance. The FDA specifically warns that HBOT devices are not proven to cure conditions such as cancer, Lyme disease, autism, or Alzheimer’s disease, and recommends that patients check with a healthcare provider before using an HBOT device.
A trustworthy provider should be clear about what HBOT may help, what it is not intended to treat, and why it may or may not be appropriate for a specific patient.
Ask How HBOT Fits Into the Bigger Treatment Plan
Patients should ask whether HBOT will be used alone or as part of a broader wound care strategy. In most chronic wound cases, healing requires more than increasing oxygen levels. The wound may need specialized dressings, removal of nonviable tissue, infection control, pressure relief, compression therapy, improved circulation, better glucose management, or nutritional support.
For example, a diabetic foot ulcer may require offloading to reduce pressure on the wound. A venous ulcer may need compression therapy to control swelling. A surgical wound may need infection management and careful monitoring. A wound related to poor arterial circulation may require vascular evaluation. HBOT may help support oxygen delivery to tissue, but it does not replace the other pieces of wound care.
This is why a patient should ask, “What else will we be doing alongside HBOT?” A clear treatment plan helps patients understand their role in the healing process. It also helps prevent unrealistic expectations. HBOT may support healing, but success often depends on consistency, follow-up, wound protection, and management of the medical issues that contributed to the wound in the first place.
Ask What Happens During a Typical Session
A patient considering HBOT should understand what the experience is like before the first appointment. During treatment, the patient enters a pressurized chamber and breathes 100% oxygen. The FDA explains that the chamber’s air pressure is raised above normal, helping the lungs collect more oxygen.
Innovative Wound Care Specialists describes the treatment as non-invasive and notes that patients may be able to watch television or nap during treatment.
Patients should ask how long each session will last, how often sessions are scheduled, and how many treatments may be needed. Innovative Wound Care Specialists explains that session length may range from 60 to 120 minutes depending on the condition, and that the total number of treatments can range from a few sessions to several dozen.
In many cases, treatment may be scheduled once per day, Monday through Friday.
Knowing the time commitment in advance helps patients plan transportation, work schedules, caregiver responsibilities, and follow-up visits. It also helps them understand that HBOT is usually a course of treatment rather than a single appointment.
Ask How to Prepare Safely
Preparation is an important part of HBOT safety. Because the chamber contains a high-oxygen environment, patients must follow facility instructions carefully. Innovative Wound Care Specialists notes that patients may be asked to change into a hospital gown or scrubs and avoid products containing petroleum because they can create a fire hazard in oxygen-rich environments.
Patients should ask what they can wear, what items are allowed in the chamber, whether they should eat before treatment, and whether any medications need special attention. They should also tell the care team about all prescriptions, over-the-counter medications, supplements, and medical devices. Patients who smoke should ask how smoking affects treatment. Innovative Wound Care Specialists states that smoking counteracts the benefits of HBOT, and patients may be asked to stop smoking before and during the treatment course.
Preparation also includes reporting temporary illness. A cold, flu, sinus congestion, or ear problem can make pressure changes uncomfortable or unsafe. Patients should tell the care team if they are not feeling well before a scheduled session.
Ask About Pressure Changes and Comfort
Many patients worry about whether HBOT is painful. The treatment itself is usually not painful, but pressure changes may cause ear fullness or popping, similar to what people feel during airplane travel or mountain driving. Patients should ask how the staff will help them manage pressure changes and what they should do if they experience discomfort.
Johns Hopkins Medicine notes that ears may feel plugged as pressure rises and that swallowing or chewing gum can help the ears “pop” back to normal.
Facility staff can also teach patients techniques for equalizing ear pressure. If a patient has a history of ear surgery, ear injury, sinus problems, or difficulty clearing the ears, this should be discussed before treatment begins.
Comfort concerns should also be discussed openly. Some patients may feel anxious in enclosed spaces, while others may worry about lying still for the duration of a session. Asking about chamber type, communication with staff during treatment, and ways to stay relaxed can make the experience less intimidating.
Ask About Risks and Whether You Have Any Personal Risk Factors
HBOT is generally considered safe when used appropriately and under medical supervision, but it still has potential risks. The FDA lists possible risks including ear and sinus pain, middle ear injuries, temporary vision changes, and rare lung collapse.
Johns Hopkins also notes possible complications such as low blood sugar, sinus problems, eye changes, and rare oxygen toxicity.
Patients should ask which risks are most relevant to them personally. Someone with diabetes may need to discuss blood sugar monitoring before and after treatment. A person with lung disease may need additional screening. A patient with recent ear surgery, sinus illness, fever, or respiratory symptoms may need to delay treatment or take extra precautions.
A good consultation should include a review of the patient’s medical history and a discussion of risks, benefits, and alternatives. Patients should leave the consultation with a clear understanding of why HBOT is being recommended and what warning signs to report during the treatment course.
Ask How Progress Will Be Measured
Because chronic wounds can take time to heal, patients should ask how the care team will track progress. Wound healing may be measured by changes in size, depth, drainage, tissue quality, pain, odor, swelling, and surrounding skin condition. Photographs may also be used to document changes over time.
Progress tracking is important because it helps the care team decide whether the plan is working. If the wound is improving, the team can continue supporting the healing process. If progress stalls, the plan may need to be adjusted. This may involve changing dressings, checking circulation, addressing infection, modifying offloading, reviewing nutrition, or reassessing whether HBOT remains appropriate.
Patients should also ask what they can do at home to support healing. Following dressing instructions, keeping pressure off the wound, eating enough protein, staying hydrated, managing blood sugar, avoiding smoking, and attending scheduled visits can all make a difference.
Ask What Makes a Facility Qualified
Not all HBOT settings are the same. Because oxygen-rich environments require strict safety procedures, patients should seek care in a medically supervised setting. The FDA advises patients to use a hospital or facility that has been inspected and is properly accredited when HBOT is recommended by a healthcare provider.
Patients should feel comfortable asking who supervises treatment, what safety protocols are followed, what equipment is used, and how the team responds if a patient experiences discomfort. Innovative Wound Care Specialists states that they use Sechrist hyperbaric oxygen chamber equipment and that patients are treated by seasoned wound care professionals at a qualified facility.
Choosing a qualified provider is not only about equipment. It is also about clinical judgment. The right team should evaluate the wound, determine whether HBOT is appropriate, monitor progress, and coordinate the therapy with the rest of the patient’s wound care plan.
Final Thoughts
Hyperbaric oxygen therapy can be an important treatment option for certain patients with chronic wounds or qualifying medical conditions. However, the decision to begin HBOT should be based on medical evaluation, clear goals, and a full understanding of how the therapy fits into the broader wound care plan.
Patients should ask why their wound is not healing, whether their condition is appropriate for HBOT, what the treatment schedule will look like, how to prepare safely, what risks apply to them, and how progress will be measured. These questions can help patients make informed decisions and participate more confidently in their care.
For anyone dealing with a wound that is not improving, the most important step is not to wait indefinitely. A chronic wound can become more serious over time, especially when infection, diabetes, poor circulation, or pressure is involved. Professional wound care can help identify the cause of delayed healing and determine whether advanced options such as HBOT may be appropriate.
References
[1] Innovative Wound Care Specialists: Hyperbaric Oxygen Therapy (HBOT )
