Diagnosis
Normally, the diagnosis of a wasp sting does not cause any major problems, as the culprit can be seen fleeing from the site of the sting. If this is not the case, you will see only a small whitish spot at the site of the puncture, sometimes with a red (bleeding) spot in the middle. A sting is usually not found, this would be typical for a bee sting, because bee stings have barbs, which is why the sting gets stuck in the skin.
Wasp stings do not have barbs, which is why wasps can sting several times. In the next few minutes, a reddish wheal forms around the sting. Wasp stings usually hurt very badly at first, but the pain often goes away on its own after a few minutes (three to eight minutes) and instead an unpleasant itching is felt.
Wasp sting under the foot
Wasp-stings at the sole of the foot are quite frequent since the animals resist if one steps barefoot, for example on a meadow, on it. They can be very disturbing. In general, however, they are not to be treated differently and are not more dangerous than wasp stings on other parts of the body like legs or arms.
First of all you should cool down. Afterwards each person affected has to decide for himself or herself whether he or she is able to walk on the affected foot. Usually the body reacts quickly and after two hours at the latest you can walk again without major discomfort. Nevertheless, excessive walking or running should be avoided until it is possible to walk again without complaints.