NORMAL AND ALLERGIC REACTIONS TO INSECT STINGS I.    Normal, non-allergic reactions at the time of the sting Pain, sometimes sharp and piercing b. Burning, or itching burn c. Redness (erythema) around sting site A white area (wheal) immediately surrounding the sting site Swelling (edema) Tenderness to touch II.    Normal, non-allergic reactions hours or days after … [Read more...]