Can allergies be caused by a fever?

No: Allergies could cause a sinus infection which may then cause a low grade fever.

NO: Fever cannot cause allergies. Fever is just an elevation of body temperature, usually due to an infection such as influenza. A few things can cause fever, but fever cannot cause allergies.

Probably Not: Allergy is a chronic inflammatory disease that is not associated with fever. If fever is present this would suggest something other than allergy as the cause. Conversely fever does not cause allergy.