There are 4,000 kinds of wasps in the United States. Typically, Wasps are most active during the day and usually return to their nests at dusk. Most wasps live less than one year and some only live for a few months. Queens sometimes live for several years.
Common home remedies for stings include coating the sting site with a meat tenderizer/water solution rinse, baking soda paste or even rubbing the site with an aluminum based deodorant!