Insect bites and stings Health Article

Definition

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.

Alternative Names

Bedbug bite; 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

Considerations

In most cases, bites and stings can be easily treated at home. However, some people have a severe allergic reaction to insect bites and stings. This is a life-threatening allergic reaction known as anaphylaxis, and it requires urgent emergency care. Severe reactions can affect the whole body and may occur very quickly, often within minutes. These severe reactions can be rapidly fatal if untreated. Call 911 if you are with someone who has trouble breathing or goes into shock.

Some spider bites, like those of the black widow or brown recluse, are also serious and can be 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

The non-emergency symptoms vary according to the type of insect and the individual. Most people have localized pain, redness, swelling, or itching. You may also feel burning, numbness, or tingling.

First Aid

For emergencies (severe reactions):

1. Check the person's airways and breathing. If necessary, call 911 and begin rescue breathing and CPR.
2. Reassure the person. Try to keep him or her calm.
3. Remove nearby rings and constricting items because the affected area may swell.
4. Use the person's Epi-pen or other emergency kit, if they have one. (Some people who have serious insect reactions carry it with them.)
5. If appropriate, treat the person for signs of shock. Remain with the person until medical help arrives.

General steps for most bites and stings:

1. Remove the stinger if still present 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.
2. Wash the site thoroughly with soap and water.
3. Place ice (wrapped in a washcloth) on the site of the sting for 10 minutes and then off for 10 minutes. Repeat this process.
4. If necessary, take an antihistamine, or apply creams that reduce itching.
5. Over the next several days, watch for signs of infection (such as increasing redness, swelling, or pain).