What is a common symptom of a negative skin prick test?

A common symptom of a negative skin prick test is the absence of any reaction at the test site. In this context, a negative result indicates that no significant allergic response occurred when the skin was exposed to the allergen being tested. This lack of reaction suggests that the individual is likely not sensitized to the specific allergen, meaning there is no histamine release or inflammatory response triggered by it.

In contrast, redness and swelling typically indicate a positive reaction, as does severe itching, which can occur due to various allergic responses. The formation of blisters would also suggest a more severe reaction, which would not align with a negative test result. Understanding these responses is critical in assessing an individual's sensitivity to allergens through skin tests.