The bee sting was more that likely Acidic froming to your body and the liver and the kidneys may do most of the job of trying to remove these Toxins , for this is their job!
Generally most insect bites are protein Based and cause an Acidic condition to occur in the body and be concentrated where the bite has occured and may spread to other parts of the body, "IF" the body does not contain enough Alkaline Mineral reserves to be able to Properly Deal with this problem at the point of bite!