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Summer is finally here! This means longer, sunny, and warm days – oh, and pesky insects of course.
For the most part, mosquitos and other bugs and insects that bite or sting humans are simply annoying and not a major threat other than causing itchy welts, swelling, or some pain at the site. However, some can carry or cause threatening diseases such as West Nile or malaria (mosquitos), Lyme disease (ticks), and severe allergic reactions (bees).
Due to a warmer winter this year, black flies and mosquitos might show up earlier this year than expected. Still, let’s not let these buggers ruin our entire summer. Instead, let’s learn how to prevent insect bites and decrease discomfort if insects do end up feasting on you.
Reaching for your bottle of bug repellent should be the last resort and should really only be used as needed (for instance, if your risk of insect-borne diseases is high). Try covering up (long sleeved shirts, high collars, thick pants tucked into socks) with light-colored clothing and use nets, especially over strollers.
If that doesn’t do the trick or if you are in a region where the prevalence of insect-borne diseases is high, repellents are a great way to prevent bug bites, but most of the conventional repellents contain DEET. DEET is a substance that prevents insects from being able to smell us. The problem is that skin is extremely porous and everything we apply to it has the potential of being absorbed in high quantities and DEET is not something we want to have in our bodies.
To be honest, I'm not aware of any repellents that offer a completely safe way to prevent bug bites, but some can be effective and relatively low in toxicity provided that they are used correctly.
Natural insect repellents may be useful when the prevalence and risk of insect-born diseases are not a concern. Citronella, a natural insect repellent, is one alternative, but be aware that it won’t offer as much protection from insect bites as products containing DEET. In addition, garlic and vitamin B supplementation, as well as clove oil, lemon grass, eucalyptus, and other essential oils may also act as an insect repellent.
The Environmental Working Group has come up with the top 4 ingredients that offer a high level of protection against insects and ticks and have a relatively safe profile: picaridin, IR3535, Oil of Lemon Eucalyptus and its synthetic derivative PMD, and DEET. Yes, DEET made it on the list because it is the only one approved by the WHO for protection against tick bites and can offer strong protection when you need it. It you are specifically looking for an efficient insect repellent that is botanically-derived, try products that contain oil of lemon Eucalyptus or PMD.
Insect bites are not 100% preventable, no matter what method is used to minimize your risk of getting bit. When you or your child experience a bug bite that is not emergent, home treatment is usually all that is needed. Here are some suggestions:
California Environmental Protection Agency. “N, N-diethyl-meta-toluamide )DEET)”. (2000). http://www.cdpr.ca.gov/docs/risk/rcd/deet.pdf
Environmental Working Group. "EWG's Guide to Bug Repellents". (2013). http://www.ewg.org/research/ewgs-guide-bug-repellents
Ferreira Maia M., Moore S. “Plant-based insect repellents: a review of their efficacy, development and testing”. Malaria Journal. (2011); 10: 1-14.
Material on this website is provided for informational purposes only. It should not be used as a replacement for medical diagnosis, treatment, or professional medical advice. Always seek professional medical consultation by a licensed medical or naturopathic physician for diagnosis and treatment of any medical condition. Please seek medical attention immediately if ever concerned.