Fortunately, in children, such reactions are annoying, but rarely serious or life threatening. They are not signs of an infection. Reactions that affect the whole body or systemic reactions are more worrisome. These include hives, wheezing, and difficulty breathing. The rare, severely sensitive individual may indeed suffer life-threatening problems from the sting to which he is allergic.
Any systemic reaction merits immediate medical attention without delay.
Allergy shots for stinging insects are available, but are rarely warranted for children with only local reactions, even if they are large. Other therapies are also available and should be discussed with your doctor. If your child is in an area where stinging insects abound, you should avoid brightly colored clothing and flailing around when the insect is near. Both tend to encourage stings. If your child is stung and you are concerned for any reason, contact your pediatrician.