Caution with Costumes Dress children in Halloween costumes that are light, bright or reflective, and short enough to avoid tripping. Be sure children can see well through masks and are instructed to watch for traffic. If children go out after dark, they should carry a flashlight. If makeup is part of the costume, children should wear it ahead of time for a couple of hours to make sure they are not allergic to it. Test makeup on a small patch of skin before applying it to large areas, and avoid makeup near eyes.
Some children have allergic reactions, causing bumps on their faces.
If broken, the solution inside the sticks can burn the eyes. If this occurs, the child's eyes should be flushed immediately with cold water. If the solution is ingested, give liquids. From the Arizona Poison and Drug Information Center, administered by The University of Arizona College of Pharmacy. A few seconds of contact with dry ice can freeze the skin, causing the same damage as a severe burn.