Spider Bite

Symptoms of a Spider Bite

• Most spider bites cause local pain, redness and swelling. It's much like a bee sting reaction.
• A few spiders (such as the Black Widow) can cause a more severe reaction.
• Helpful if spider seen on the skin or around the child

Cause of Spider Bite Reactions

• Most spiders have tiny fangs. They inject venom into the skin.
• The venom is what causes all the symptoms.

Types of Spider Bites

Black Widow Spider Bite

• A shiny, jet-black spider with long legs (total size 1 inch or 25 mm).
• A red (or orange) hourglass-shaped marking on its under-side.
• Causes immediate local pain and swelling.
• Sometimes, you can see 2 fang marks at the bite site.
• Severe muscle cramps (especially stomach cramps) occur within 1 to 6 hours. These last 24 to 48 hours.
• Rarely causes death. Exception: bitten by several spiders or small child is bitten.
• Note: many are dry bites because the fangs are small.
• The brown widow spider is related to the black widow. It is found in southern US.
• Brown widow spider bites are treated the same as black widow bites.

Brown Recluse Spider Bite

• A brown spider with long legs (total size ½ inch or 12 mm).
• A dark violin shaped marking on top of its head.
• Causes pain at the bite. Blisters form within 4 to 8 hours.
• The center becomes bluish and depressed (crater-like) over 2 to 3 days.
• Skin damage may require skin grafting in 10% of cases.
• Other symptoms such as fever, vomiting, muscle pain can occur. No life-threatening symptoms occur.
• Brown recluse spiders are hard to identify. If you can, bring the spider along in a jar.

Non-dangerous Spider Bites

• More than 50 spiders in the U.S. have venom. Their bites cause reactions that are not serious. This includes pain or redness at the bite site.
• The bites are painful and swollen. This lasts for 1 or 2 days. They can feel and look like a bee sting.
• Some single, unexplained, tender bites that occur during the night are due to spiders.

1. What You Should Know About Spider Bites:
   • Most spider bites look and feel like a bee sting.
   • The main symptoms are pain and redness.
   • Here is some care advice that should help.
2. Clean the Bite:
   • Wash the bite well with soap and water.
3. Cold Pack for Pain:
   • For pain or swelling, use a cold pack. You can also use ice wrapped in a wet cloth.
   • Put it on the bite for 20 minutes.
4. Pain Medicine:
   • To help with the pain, give an acetaminophen product (such as Tylenol).
   • Another choice is an ibuprofen product (such as Advil).
   • Use as needed.
5. What to Expect:
   • The swelling and pain lasts for 1 to 2 days.
   • It should not be any worse than a bee sting.
6. Call Your Doctor If:
   • Severe bite pain lasts more than 2 hours after pain medicine
   • Stomach pains or muscle cramps occur
   • Bite pain lasts more than 2 days (48 hours)
   • Bite starts to look infected
   • You think your child needs to be seen
   • Your child becomes worse