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Insect bites and stings can cause an immediate skin reaction. The bite from fire ants and the sting from bees, wasps, and hornets are usually painful. Bites caused by mosquitoes, fleas, and mites are more likely to cause itching than pain.
Insect and spider bites cause more deaths from venom reactions than bites from snakes.
Bee sting; Bites - insects, bees, and spiders; Black widow spider bite; Brown recluse bite; Flea bite; Honey bee or hornet sting; Lice bites; Mite bite; Scorpion bite; Spider bite; Wasp sting; Yellow jacket sting
In most cases, bites and stings can be easily treated at home.
Some people have extreme reactions that require immediate medical treatment to prevent death.
Certain spider bites, such as the black widow or brown recluse, can be serious and life-threatening. Most spider bites, however, are harmless. If bitten by an insect or spider, bring it for identification if this can be done quickly and safely.
Symptoms depend on the type of bite or sting. They may include:
Some people have severe, life-threatening reactions to bee stings or insect bites. This is called anaphylactic shock. This condition can occur very quickly and lead to rapid death if not treated quickly.
Symptoms of anaphylaxis can occur quickly and affect the whole body. They include:
For severe reactions:
General steps for most bites and stings:
Remove the stinger by scraping the back of a credit card or other straight-edged object across the stinger. Do not use tweezers -- these may squeeze the venom sac and increase the amount of venom released.
Call 911 of your local emergency number if someone with a sting has the following symptoms:
If you had a severe, body-wide reactions to a bee sting, your doctor should send you to an allergist for skin testing and therapy. You should receive an emergency kit to carry with you wherever you go.
Schlossberg D. Arthropods and leeches. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 380.
Fradin MS. Protection from blood-feeding arthropods. In: Auerbach PS, ed. Wilderness Medicine. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 41.
Otten EJ. Venomous animal injuries. In: Marx JA, Hockberger RS, Walls RM, et al., eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, Pa: Mosby Elsevier; 2013:chap 62.
Review Date: 1/13/2014
Reviewed By: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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