Minor swelling is typical after a bee sting, but some people experience more moderate swelling or even severe allergic reactions. Someone who has rapid swelling, especially in the face and throat areas, or other severe reactions after a sting should call emergency services, according to WebMD.
Some people simply have more swelling and reactions than is typical, but these cases aren't medical emergencies. Such people may have five to 10 days of moderate swelling after each bite. Treatment options are available. A person who has a severe reaction and medical emergency needs to consult with a doctor to prepare for future occurrences, which are highly possible, according to Mayo Clinic.