Brightwheel has red allergy badges. The badges allow you to quickly spot which students have allergies, so you don't have to click into each child's profile to see if they have any sort of allergies.
The allergy icons will appear on the home screen, and when selecting students for a food activity.
Note: If you enter any text in the allergy field, the badge will be created for that child. Be sure to leave the allergy field blank if the student doesn't have any allergies.