Allergy skin testing of children

Area of Science:

• Allergy and Immunology
• Dermatology

Background:

• Skin tests are crucial for diagnosing inhalant allergies.
• Optimizing skin test interpretation requires understanding key principles.

Purpose of the Study:

• To outline essential guidelines for accurate skin testing in allergy management.
• To differentiate the reliability of skin tests for inhalant versus food allergies.

Main Methods:

• Review of established best practices for skin prick and intradermal testing.
• Discussion of factors influencing skin test reactivity, including medication effects.
• Comparison of skin testing with elimination diets for food allergy diagnosis.

Main Results:

• Effective inhalant allergy skin testing necessitates deep scratch tests and fresh antigens.
• Accurate testing includes two control tests and awareness of antihistamine interference (e.g., hydroxyzine, promethazine).
• Skin tests for food allergy demonstrate poor reliability, with elimination diets being the preferred diagnostic method.

Conclusions:

• Adherence to specific technical and procedural principles enhances the utility of skin testing for inhalant allergies.
• Skin testing is not recommended as a reliable diagnostic tool for food allergies.
• Elimination diets are the gold standard for diagnosing food allergies.