Are wasps aggressive

actually not really. They make their nests in pretty random places like mailboxes, sometimes. Their stings are best treated with meat tenderizer on a wet cloth pressed against the sting. they do not swarm you unless you step on their nest by accident. they usually just sting you and you can get help. if ur alone when you get stung it would be best to use mud to blot the sting. and just in case its not rainy, you can use a leaf.