XLC Section 508 VPAT Template - Home | US Forest Service

May 03, 2018 · If you are allergic to the allergens that are introduced under your skin, you may get a bump on your skin called a wheal. The wheal might be red, itchy or swollen. This usually goes away within 30–60 minutes after the skin test, although it can last for up to 24–48 hours. ................
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