Halloween is only a couple weeks away away and that you and anyone else planning to dress up is probably scrambling to come up with a fantastic costume for the big night if you haven't already.

I don't mean to be a party pooper, but in the midst of all of the excitement of the Halloween season, you need to know that some of the costume pieces you've been thinking about wearing could legitimately hurt your health. I mean, this is only a small example, but there was the year that I desperately wanted to be a clown, despite my mom's plea for me to pick a different costume. It was only after getting home from trick-or-treating when my mom was washing off my makeup that we learned just how sensitive my skin is to cheap costume makeup. My face was red and blotchy for weeks after.

If you want to avoid a mishap like the one I had (or ones more serious), these are four things to avoid when putting your costume together this Halloween.

  • 1

    Vintage Clothes

    Not to disgust you, but a lot of the stuff you get at thrift stores is CRAWLING with dust mites. If you think that you can just pop the clothes in the wash and they'll be good as new, think again. There's a method to killing the dust mites and this is how it's done.

  • 2

    Metal Jewelry

    Metal jewelry can irritate your skin. So ditch the chokers and tiaras or put some fabric in between the jewelry and your body. Also, not to completely freak you out, but a non-profit called The Ecology Center ran tests on 99 pieces of jewelry and found that over half of the pieces contained high levels of hazardous chemicals such as lead, brominated flame retardants, chlorine, and arsenic.

  • 3

    Cheap Makeup

    Tons of people are allergic to the preservatives in cheap makeup, but unfortunately, they don't find that out until the day after their costume party. When they wake up with a rash. Or worse. Like I did.  According to the American College of Allergy, Asthma, and Immunology, Halloween makeup might contain preservatives that can cause a rash and swelling of the skin. Formaldehyde is a very common preservative used in many of these products, but you should know that even some products labeled “formaldehyde-free” can still cause allergic reactions.

  • 4

    Fashion/Colored Contact Lenses

    If you leave these in too long or don't disinfect them properly, you can wind up with a super gross eye infection. Not to mention the lenses you buy might be illegal.