wo kann ich allergietest machen — what symptoms are typical?

Allergy testing should be done under medical supervision. Typical allergy symptoms include sneezing, itching, hives, swelling, difficulty breathing, and in severe cases anaphylaxis. For food intolerances (e.g., lactose, fructose), symptoms like bloating, gas, diarrhea, or abdominal pain are common – but these are not mediated by IgE antibodies. Home allergy tests measure IgE and can indicate sensitization, but many positive results are false positives. They cannot replace a doctor's diagnosis. For celiac disease, an HLA-DQ2/DQ8 DNA test can rule out the condition if negative, but a positive result does not mean disease (only about 3% of carriers develop celiac). Diagnosis requires blood tests and biopsy. Evidence: home tests are marketing-driven; HLA test has strong human evidence. Safety note: If you suspect an allergy or intolerance, consult a doctor or allergist, especially for children or severe symptoms.