You are more at risk of serious allergic reactions to insect stings if you have frequent or multiple stings. Beekeepers and people with a rare condition called mastocytosis are more at risk of having serious sting reactions.
People who have other allergies, such as hay fever or food allergies, are not at increased risk of having a serious allergic reaction to an insect sting.
If you are allergic to insect stings, you can still enjoy the great outdoors by seeking medical advice, carrying prescribed medication at all times, and taking precautions to avoid being stung.