Most spider bites can be treated at home with a combination of basic wound care, cold compresses, and over-the-counter pain relievers. The majority of spiders in North America produce bites no worse than a mild bee sting, and symptoms resolve within a few days. Bites from black widows, brown recluses, or hobo spiders are the exceptions and may need medical treatment.
First Aid in the First Hour
Start by washing the bite with mild soap and water. Apply an antibiotic ointment to the area three times a day to help prevent infection. Then place a cool, damp cloth or a cloth-wrapped ice pack on the bite for 15 minutes each hour. This reduces both pain and swelling. If the bite is on your hand, arm, foot, or leg, keep that limb elevated when you can.
These steps alone are enough for the vast majority of spider bites. Secondary infection from spider bites is actually rare, occurring in less than 1% of cases, so the main goal is comfort while your body heals.
Over-the-Counter Pain and Itch Relief
An over-the-counter pain reliever like ibuprofen or acetaminophen is the standard recommendation for spider bite pain. Ibuprofen pulls double duty because it also reduces inflammation around the bite. Antihistamines (the same ones you’d take for allergies) can help with itching and mild swelling.
Hydrocortisone cream applied to the bite can also take the edge off itching and irritation. Between an oral pain reliever, an antihistamine, and a topical anti-itch cream, most people have everything they need in their medicine cabinet already.
What About Home Remedies?
You’ll find advice online about baking soda paste, meat tenderizer, essential oils, and other home treatments for spider bites. None of these have reliable scientific support. They won’t hurt in most cases, but they also won’t do anything that soap, ice, and a pain reliever can’t do better. Stick with the basics.
Brown Recluse Bites Need Watchful Care
Brown recluse bites are the ones most likely to cause visible skin damage. The bite may initially look unremarkable, then develop into a painful lesion over 24 to 72 hours. In some cases, the skin around the bite turns dark and breaks down, forming an ulcer that can take weeks to heal.
Treatment for most brown recluse bites is still supportive: rest, ice, compression, and elevation. Anti-inflammatory pain relievers and antihistamines help control the body’s inflammatory response early on. If the wound develops signs of secondary infection (spreading redness, warmth, fever, or discharge), antibiotics become necessary.
Brown recluse bites that break the skin also raise the question of tetanus. A tetanus booster is recommended if you’re not up to date on your immunization. If you can’t remember when you last had one, it’s worth checking with your doctor.
Black Widow Bites Are a Different Problem
Black widow venom attacks the nervous system rather than the skin, so the bite itself may look minor while causing intense muscle pain, cramping, and spasms that can spread across your body. These symptoms typically aren’t something you can manage at home with over-the-counter options.
In a review of 163 black widow bite cases, the most effective relief for moderate to severe symptoms came from either antivenom or a combination of hospital-administered pain medication and muscle relaxants. Patients who received antivenom saw complete resolution of symptoms in an average of about 30 minutes. Among those treated with pain medication and muscle relaxants instead, roughly 55% to 70% got adequate relief without needing additional treatment.
If you suspect a black widow bite, head to an emergency room rather than trying to treat it yourself. The cramping and pain can become severe quickly.
When a Bite Needs Emergency Attention
Most spider bites are a nuisance, not an emergency. But certain symptoms signal that venom is affecting your whole body, not just the bite site. Get medical help if you experience:
- Difficulty breathing or tightness in the chest
- Heart palpitations or a racing pulse
- Severe muscle pain, cramps, weakness, or paralysis
- Nausea and vomiting
- Vision problems or a severe headache
- Signs of infection like fever or yellow discharge from the bite
You don’t need to have seen the spider. Most people who develop serious symptoms from a spider bite never actually identified what bit them. If the symptoms above are showing up, that’s reason enough to get evaluated regardless of what caused the bite.
What You Actually Need on Hand
For a typical spider bite, your treatment kit is simple: soap, antibiotic ointment, a cold pack, ibuprofen or acetaminophen, an antihistamine, and hydrocortisone cream. Keep the bite clean, keep it cool, and give it a few days. If the area around the bite keeps growing, the pain gets worse instead of better, or you develop any body-wide symptoms, that’s when to move beyond self-care.