A little late now that you've got the Rx for the epi-pen but Benedryll will help with those allergic reactions from stings too. We were putting up a garage and a friend got nailed by a bee on his arm with the truck window down on his way over to help. When he got there he had to sit down and was having some trouble breathing. Took a while for him to come around, he carries an epi-pen now.