BITES and STINGS
Since there are millions of insects whose bites or stings cause problems, we will simplify this topic by splitting
them into two categories: venomous and non-venomous.
Wasps Hornets Yellow Jackets All Bees
Characteristics of Bites/Stings
What's the Difference Between a Bite and a Sting?
Local vs. Systemic Reactions
Venomous stings are always very painful, red, and swollen up to 12 inches around the sting site. This is called a local reaction. In sensitive individuals, a systemic or "whole body" reaction occurs, with redness, hives (itchy raised skin lumps), and swelling far away from the sting site. These systemic reactions can progress to involve the airways and circulation and may be life- threatening. Obviously itís important to know the difference between local and systemic reactions.
Biting insects generally arenít dangerous because allergic reactions are extremely rare. True, they do spread
diseases like Lyme, Rocky Mountain Spotted Fever, encephalitis, and malaria, but for most of us their bites just
cause terrible itching.
For insect bites and stings, there are two types of prevention: repellents and avoidance. Insect repellents work well for biting, non-venemous insects, but not against angry stinging insects. The most effective repellent available is DEET (n,n-diethyl-meta-toluamide) available in sprays and lotions. Despite advertising claims, no oral products have ever been shown to be effective insect repellents.
Avoidance techniques for bites and stings are summarized in the tables below. Avoiding Stinging Insects: Donít wear perfume or scented lotions. Control odors at picnics, garbage areas, etc. Avoid brightly colored clothing outdoors. Destroy or re-locate all known hives or nests near your home.
Avoiding Mosquitoes, Chiggers, and Ticks: Cover as much of your skin as possible with clothing, hats, socks, etc. Pay special attention to cuff areas at ankles, wrists, and neck. Avoid swamps (mosquitoes), dense woods, fields, and brush (ticks, chiggers). Examine exposed skin and scalp areas for clinging ticks after returning from hikes. Use insect repellent.
Place the edge of a dull table knife firmly against your skin next to the embedded stinger. Applying constant firm
pressure, scrape the knife across your skin surface and the stinger. This removes the stinger without injecting
more venom, which is what happens when you remove the stinger with tweezers or your fingers.
Motrin IB ibuprofen 200 mg). For pain and swelling from insect stings, Motrin IB is an excellent anti-inflammatory with quick onset. Cortaid 10 (hydrocortisone 1%). This hydrocortisone cream improves both itching and swelling/redness. It actually has anti-inflammatory effects, not just symptomatic relief like the topical anesthetics. However, it does take longer for full effect than topical anesthetics. Dermoplast Spray (benzocaine 20%, menthol .5%). For immediate relief from surface itching and pain, nothing is more effective than the active ingredients in this product. The spray bottle is a convenient method of application, too. Mycitracin Ointment (polymyxin B 10,000 IU/g, bacitracin zinc 500 IU/g, neomycin sulfate 5 mg/g). If you're concerned an insect bite or sting may become infected, the active ingredients in this product are the strongest surface antibiotic available without prescription.
Any systemic reaction should be seen by a doctor immediately. This includes hives wherever they may occur, swelling in the face, shortness of breath or wheezing, difficulty swallowing, and lightheadedness or fainting. These usually occur within minutes to an hour after the sting.
Local reactions generally donít require professional care. However, if your local reaction causes enough swelling or pain to distract you from your normal activities or keep you awake despite basic treatment, you should see a doctor.
Many people are worried about infection when they see the redness and swelling from the sting, but that's normal
immediately after a sting and up to a few days later. Infection is uncommon and almost never occurs earlier than
24 hours after the sting. After 24 hours, if there is pus or the redness/swelling is worsening, see your doctor.
ANIMAL BITES CARRY A HIGH RISK OF INFECTION AND REQUIRE PROFESSIONAL ATTENTION PROMPTLY! Infection may develop hours, or days, after an animal bite. Signs and symptoms of infection are pain & tenderness at the wound site, redness, heat, swelling, pus at the wound site, red streaks in the skin around the wound and possible swollen glands closest to the wound. First aid care for animal bites includes washing the wound well with soap and water, if there is no heavy bleeding. Then cover the wound and seek professional attention. A serious wound should be cleaned only by trained medical personnel.
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