Desensitization (medicine)

Desensitization (also known as immunotherapy) is a medical treatment designed to reduce or eliminate an individual's hypersensitivity to certain substances, often allergens. This process involves the gradual exposure of the patient to the allergen in order to build up their immune system's tolerance.

Overview

Desensitization is commonly used in the treatment of allergic reactions, including those to insect stings, food, and medications. The process involves the administration of gradually increasing doses of the allergen over a period of time. This can be done through injections, oral administration, or sublingual drops.

Process

The desensitization process begins with the administration of a very small dose of the allergen. This dose is gradually increased over time, allowing the immune system to become less reactive to the allergen. The goal is to reach a maintenance dose, at which point the patient's immune system is expected to have developed a tolerance to the allergen.

Benefits and Risks

Desensitization can significantly improve the quality of life for individuals with severe allergies. However, it is not without risks. Potential side effects include local reactions at the site of injection, systemic reactions such as anaphylaxis, and, in rare cases, death. Therefore, desensitization should only be undertaken under the supervision of a qualified healthcare professional.

See Also

• Allergy
• Immunotherapy
• Hypersensitivity
• Anaphylaxis