What role does hsCRP play in allergy?

hsCRP (high-sensitivity C-reactive protein) is a non-specific marker of systemic inflammation, not a specific indicator of allergy. In allergic conditions such as hay fever or asthma, hsCRP can be mildly elevated due to the underlying inflammatory response, but it lacks diagnostic specificity. Many factors—infections, obesity, smoking, or chronic diseases—also raise hsCRP. Therefore, hsCRP is not used as a primary tool for allergy diagnosis; instead, specific IgE testing, skin prick tests, and clinical history are standard. Some studies show that elevated hsCRP in allergic individuals may correlate with disease severity (e.g., in asthma), but the evidence is moderate and observational. A normal hsCRP does not rule out allergy. For consumer health tests, hsCRP can provide a general inflammation snapshot but should not replace professional allergy evaluation. Caveat: relying solely on hsCRP for allergy management is not evidence-based. Always consult an allergist for proper diagnosis and treatment.