CRP (C-reactive protein) is a non-specific marker of inflammation that rises during acute and chronic inflammatory states. In allergies—particularly allergic rhinitis, asthma, or atopic dermatitis—mild systemic inflammation can occur, which may be reflected in elevated CRP levels. However, CRP is not a specific allergy marker; IgE antibodies and clinical symptoms are essential for diagnosis. Studies show moderate associations between elevated CRP and allergic conditions, but the evidence is insufficient to establish a direct causal link. A CRP test alone cannot confirm or rule out an allergy. MyBody-X offers CRP as part of inflammation panels, but results should always be interpreted by a physician. High CRP levels warrant medical investigation, as they may also indicate infections or autoimmune diseases. For allergies, specific IgE testing or provocation tests remain the gold standard.
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