All spiders are venomous – only a few have bites dangerous to humans. The most dangerous spiders in North America are; the Black Widow, Brown Recluse, Tarantulas, Sac, and a Funnel-Web Spider.

Spider Bite Avoidance

Consider the following:

  • Check your footwear and clothing every morning,
  • Check your sleeping bag and tent before entering,
  • Be cautious when turning over rocks and logs,
  • Sleep in a tent or with bug netting – under the stars is for cowboys,
  • Keep your tent zipped up tight at all times – even when empty,

The Nasty

Each type of spider bite creates a different set of symptoms, which may include:

  • Discolouration and swelling,
  • Muscle pains, aches and cramps,
  • Weakness,
  • Itching,
  • Sweating,
  • Headache,
  • Anxiety,
  • Rash,
  • Nausea,
  • Vomiting,
  • Fever,
  • Chills,
  • Difficulty breathing,
  • Increased blood pressure,
  • Blisters that break open,
  • Ulcers that scab over.


There is no specialized treatment. Consider the following:

  • Wash the wound with soap and water – to prevent infection,
  • Treat all symptoms as needed.
  • Antihistamines such as Benadryl can reduce swelling
  • Antibiotic creams applied to the wound can prevent infection from spreading


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