Whether you're a ghost or zombie, vampire or witch, poor costume choices, including decorative (colored) contact lenses, can cause injuries that haunt you long after Halloween. Enjoy a safe and happy Halloween by following these guidelines from FDA , and the CDC :

Don't wear decorative (colored) contact lenses unless you have seen an eye care professional for a proper fitting and been given instructions for how to use the lenses. If you have never worn contact lenses before, Halloween should not be the first time you wear them. Experts warn that buying any kind of contact lenses, which are medical devices and regulated as such, without an examination and a prescription from an eye care professional can cause serious eye disorders and infections, which may lead to permanent vision loss.

Vibrantly colored makeup is popular at Halloween. Check FDA's list of color additives to see if the colors are FDA approved. If they aren't approved for their intended use, don't use them. This is especially important for colored makeup around the eyes.

Wear makeup and hats rather than masks that can obscure your vision. And wear costumes that say “flame resistant” on the label. If you make your costume, use flame-resistant fabrics such as polyester or nylon.

Wear bright, reflective costumes or add strips of reflective tape so you'll be more visible; make sure the costumes aren't so long that you're in danger of tripping.

Test the makeup you plan to use in advance. Put a small amount on the arm of the person who will be wearing it. If a rash, redness, swelling, or other signs of irritation develop where the makeup was applied, that's a sign of a possible allergy.

Keratocat cartoons are created by Gabriel Acevedo (@chessoloc)