was kostet ein allergietest — can a microbiome test help?

The cost of an allergy test is not provided in the given context. MyBody-X offers a DNA-based allergy test, but according to the context it is classified as marketing: it shows genetic risk, not acute triggers. A microbiome test cannot help with allergies because it is not validated for diagnosing specific allergens. Microbiome tests may indicate gut composition but not IgE-mediated reactions or contact allergens. For a current rash or other allergic symptoms, seeing a doctor for specific IgE testing or patch testing is appropriate. The evidence for DNA allergy tests is weak and marketing-driven. Do not rely on such tests for acute complaints.