Can you outgrow allergies such as the case with peanuts? Has any case appeared where the peanut allergy strength has slightly subsided?

Food allergy. Peanut allergy is generally unlikely to be outgrown. Certain subtle adaptations to food allergies occur in some individuals as they get older so that thier childhood milk allergy or other foods appear to disappear but may return again. Not all food allergy in adults is a true allergy.