wie lange vor allergietest cetirizin absetzen — what symptoms are typical?

Cetirizine, a second-generation antihistamine, should generally be discontinued 3–5 days before allergy skin testing (e.g., prick test) because it can suppress the wheal-and-flare reaction. Some guidelines recommend up to 7 days depending on the drug's half-life and patient factors. Typical allergy symptoms that the test aims to identify include sneezing, rhinorrhea, nasal congestion, itchy/watery eyes, urticaria, and occasionally dyspnea. The question likely refers to these symptoms rather than withdrawal effects. Evidence is based on clinical practice and expert consensus (e.g., EAACI guidelines), not on direct trial data from the provided context. Caveat: Do not stop antihistamines without consulting a physician, especially if symptoms are severe or if asthma is present. The test is a diagnostic aid, not definitive for all allergies.