CO₂ Therapy: Maria's Gas

What is Maria's Gas?

Mariánské Lázně possesses a globally unique natural resource: 99.7% pure carbon dioxide gas (CO₂) that rises naturally from the volcanic subsoil of the Slavkov Forest. This gas, affectionately known as "Maria's Gas", is one of Marienbad's four natural healing resources and forms the basis for a range of highly effective therapeutic treatments.

CO₂ therapy is one of the most thoroughly researched forms of balneotherapy (the science of therapeutic bathing) and has been systematically practised in Marienbad for over 150 years.

How Does CO₂ Therapy Work?

When carbon dioxide is absorbed through the skin, it triggers a cascade of physiological responses:

• Vasodilation: CO₂ relaxes the smooth muscles of blood vessels, leading to significant dilation. Blood flow in the treated areas can triple.
• Blood pressure regulation: Vasodilation reduces peripheral resistance, thereby lowering arterial blood pressure.
• Improved oxygenation: Through the Bohr effect, oxygen release from haemoglobin to tissues is facilitated — cells receive better oxygen supply.
• Pain relief: Improved circulation and the direct effect of CO₂ on nerve fibres produce an analgesic effect.
• Wound healing: Enhanced microcirculation promotes tissue regeneration and accelerates healing.

Forms of CO₂ Therapy in Marienbad

1. CO₂ Dry Gas Bath (Marienbad Gas Wrap)

The most well-known application: the patient lies in a special plastic bag reaching to the neck, filled with natural CO₂. The treatment lasts 20-30 minutes and is completely painless — many patients experience a pleasant sensation of warmth and tingling.

2. CO₂ Bath (Carbonated Mineral Bath)

Mineral baths enriched with natural CO₂. The gas is absorbed through the skin and partially through the respiratory tract. The bath temperature is 33-34°C, well below a normal warm bath — yet the patient perceives pleasant warmth due to the vasodilating effect of CO₂.

3. CO₂ Insufflation (Gas Injections)

Subcutaneous injections of small amounts of CO₂ into painful joints or muscle areas. This method is used for targeted local complaints, combining the circulation-enhancing effect with a direct analgesic action.

Indications

CO₂ therapy is successfully used for:

• Cardiovascular conditions (arterial hypertension, peripheral circulation disorders)
• Musculoskeletal conditions (osteoarthritis, rheumatic complaints)
• Wound healing disorders and trophic ulcers
• Diabetic polyneuropathy
• Post-operative rehabilitation
• Stress-related conditions and fatigue syndromes

What Does the Science Say?

CO₂ therapy is one of the most thoroughly researched forms of balneotherapy. Clinical experience and studies suggest:

• A reduction in systolic blood pressure by up to 10–15 mmHg after a two-week course
• A substantial improvement in peripheral circulation
• A majority of patients report significant pain reduction for joint complaints
• Measurable improvement in wound healing for chronic ulcers

Practical Information

CO₂ therapy is available at all Ensana Spa Hotels in Marienbad. A single treatment lasts 20-30 minutes and is typically administered once daily over a period of 7-21 days. Optimal results develop with a minimum course of 14 days.

Before beginning treatment, a medical examination determines your individual therapy plan. Contraindications include acute inflammation, uncontrolled heart failure and certain skin conditions.