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They may cause trouble breathing, a severe headache and painful muscle cramps that require immediate medical care. Two species of indoor red spiders with venomous bites are the common red house spider and the woodlouse spider. A bite from these reddish-looking spiders may cause some pain and red skin swelling.
Bite Symptoms
Most spiders found inside are harmless to humans and more interested in catching other insects than tangling with you. With the right techniques, you can remove and prevent spiders from taking up residence in your bed. Several types of skin conditions can resemble bedbug bites. Bedbugs aren't known to transmit diseases to humans — although an infestation can cause significant psychological stress and lead to insomnia.
How to tell if you’ve been bitten by a spider
How do you know if you’ve been bitten by a spider—and a dangerous one, at that? We tapped a doctor and entomologists for tips on what to look for and rounded up photos to give you an idea of what spider bites could look like. Here’s how to identify them, and what you should do if you’re unlucky enough to fall beneath the fang. “Spider bites are really rare,” says Jonathan Day, PhD, a professor emeritus of medical entomology at the University of Florida. He explains that most “spider bites” are more likely mosquito bites that were scratched and became infected.
Wolf spider
A brown recluse spider is recognized by its dark brown color and violin-shaped body. Its bite may look initially look like a flat area of whiteness (caused by the death of local capillaries and loss of blood flow). It will eventually turn black and blue as blood leaks from the disrupted blood vessels. Always seek medical attention if you suspect you or someone else has symptoms of a spider bite. A wolf spider’s bite may tear the skin and cause pain, redness, and swelling.
Belonging to the spider class Arachnida, the red mite has eight legs and spins webs on plants. The plant-destroying red spider mite bites into soft plant tissue to feed on the juices. This article is a guide to identifying the most common types of red spiders. Descriptions and pictures of the eight-legged creatures will help you recognize the individual spider species. Spiders in beds are actually quite common, with one study finding that 67% of homeowners have encountered spiders in their bedrooms. So if you’ve discovered an arachnid roommate, you’re definitely not alone.
The most common red spider you’ll likely encounter indoors is the red house spider (Nesticodes rufipes). The small pesky critters like hiding in cool, dark places like in cracks, crevices, and gaps. It’s possible to identify these tiny spiders by their bulbous dark red abdomen and reddish-orange spiny legs. However, the good news is that red-colored spiders are rarely harmful to humans.
But the bites can be difficult to identify unless you find evidence of the insects in your home. They can resemble other insect bites or several skin conditions. Russell says spider bites don’t require anything more than you’d do for a mosquito bite or bee sting, like washing the wound and using hydrocortisone cream. You can also apply ice to the bite itself to minimize swelling. And, if you find that your bite is itchy, Dr. Kman recommends taking an antihistamine like Benadryl or Zyrtec.
Dig Deeper on House Spiders
However, the spiders are not aggressive and will try to scurry away rather than attack. The easiest way to identify a red spider in the home is by its shade of red color. Some red spiders are reddish-brown, whereas other spiders have mainly red bodies with black patches or markings. Like all spiders, red spiders have eight legs, six or eight eyes, and chelicerae (mouthparts).
According to the Mayo Clinic, of the thousands of spider species, only a few have long enough fangs and strong enough venom to inflict a dangerous bite on a human. According to the Mayo Clinic, symptoms of a typical spider might include red or inflamed skin around the bite site. Spiders are incredibly beneficial to humans because they trap and eat insects such as flies, mosquitoes, and ants. Find out more fascinating facts about spiders, their webs, and behavior from the experts who study them. The brown recluse—also known as the fiddleback or violin spider—has a distinct violin-shaped marking that starts at the top of its head and goes down its back. It’s also identified by its six eyes instead of the typical eight.
With a brown recluse bite, the skin is more likely to be white, purplish, or black rather than red. Though some spider bites can cause a small, red bump, a lesion with a red inflamed center is not suggestive of a venomous spider bite. Wolf spider bites are usually harmless unless you are allergic to the venom, and most people are not.
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A tarantula bite may be painless, but symptoms can appear several hours or days later. You may have more painful and severe symptoms if a black widow, brown recluse or hobo spider bites you. With proper medical care, most people recover from venomous spider bites.
Not only is it disturbing to see those eight creepy legs skittering across your sheets, but you may also worry about the spider biting or crawling on you as you sleep. Dermatitis hepetiformis is a rare autoimmune skin condition. It causes itchy blisters and redness on lighter skin and purplish coloring on skin of color. A fungal infection can cause an allergic reaction that leads to an itchy and bumpy rash on another part of your body. Hives are red bumps or welts that form on your skin due to an allergic reaction. Bug bites and rashes can look different on different skin types.
A bullseye rash—known as erythema migrans—can be a sign of a spider bite. These are characterized by a small area of redness and swelling encircled by a "halo" of reddened skin. Unless you actually see a spider bite you, the only real way to tell if you've been bitten is to have it checked by a healthcare professional.
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Seek medical attention immediately if you experience any of these symptoms. Their body measures around half to three-quarters of an inch long. Your doctor will examine the bite and prescribe antibiotics. People who experience tissue death may need surgery and time in the hospital. Being proactive about preventing these pests from entering your home is a reliable way to help avoid this issue. Remember to shake out clothes and other stored items in attics and garages before moving them indoors.
Safely capturing and removing invaders, washing bedding, sealing access points, and employing deterrents will help evict spiders and prevent new ones from sneaking in. Leveraging professional pest control gives you backup firepower against stubborn spider infestations. An clean, dry bedroom with limited food options convinces spiders to look for better lodgings. To prevent future unwanted spider visitors, you’ll need to proactively block access to your bed. If you spot a spider in your bed, resist the urge to smoosh it with a shoe or other object.
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