Final answer:
The medication commonly carried by individuals severely allergic to bee stings is epinephrine, which is essential in treating anaphylactic shock and can be life-saving.
Step-by-step explanation:
The medication most likely to be carried by someone who is severely allergic to bee stings is epinephrine. This drug is used to counteract the effects of anaphylactic shock, which is a severe allergic reaction that can be life-threatening. Individuals who have a history of severe allergic reactions to bee stings or other allergens often carry an epinephrine autoinjector, such as an EpiPen, that can be used immediately in case of an emergency. Epinephrine works by raising blood pressure and relaxing bronchial smooth muscle, which helps to alleviate symptoms like drop in blood pressure and difficulty breathing, thus it can be lifesaving.