Replied by Ted (Bangkok, Thailand)
Sandy: Not sure if your daughter is allergic to vitamin C. If she does not break out in rash eating oranges then it may be from the food coloring contained in the vitamin C you are buying. Switching brands to additive free vitamin C or ones without food coloring should solve the problem. It could also be the food preservative. One possibility is if she is sulfite sensitive (easy to get allergy), taking vitamin B complex should solve the rash issues
