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

For allergy skin prick testing, cetirizine should be stopped at least 3–7 days beforehand because it suppresses the histamine response and can cause false-negative results. Typical allergy symptoms include sneezing, runny nose, itchy/watery eyes, skin rash, and breathing difficulties. The exact washout period depends on the specific test and your doctor's advice. Note: Do not discontinue any medication without consulting your physician.