I Got A Wasp Sting By My Wrist About 36

I got a wasp sting by my wrist about 36 hrs ago, it has a mild selling between the bones about 1/2 way to my elbow, intermittent mild stinging on the skin surface. I am not normally effected more than a cpuple hours from most insect bites/stings, so this has me curious what might be happening.