Myths vs facts: IgE Allergietest and Haut

Myths vs. Facts about IgE allergy tests and skin: An IgE blood test measures specific antibodies against allergens and can confirm an IgE-mediated allergy (e.g., hay fever, hives). **Myth:** An IgE test detects all food intolerances. **Fact:** IgE tests are only for true allergies; intolerances (e.g., lactose intolerance) require other methods (e.g., breath test, genetic test). **Myth:** Skin prick tests are always better than blood tests. **Fact:** Both have pros and cons; skin tests can be unreliable in severe skin conditions (e.g., eczema), making blood tests a good alternative. **Myth:** A positive IgE result automatically means a clinical allergy. **Fact:** Sensitization ≠ allergy; diagnosis requires correlation with symptoms. **Myth:** You can test for all possible allergens at once. **Fact:** Targeted testing based on history is more meaningful; large panels often lead to false positives. **Note:** Proper preparation (stopping antihistamines) is crucial to avoid false negatives – always discuss with a doctor, especially for children or pregnant women. Evidence for IgE testing is strong (human-strong), but interpretation requires clinical expertise.