Medically reviewed first-aid guidance

Clear answers for insect bites & stings.

Understand the clues, care for a mild reaction, and recognize when to get medical help. Plain-language guidance for everyday bites, stings, and outdoor prevention.

What bit or stung you?
Quick filter: Mosquito Tick Bee Wasp Spider
Medically reviewed
Plain-language
U.S. audience
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Stinger removed?

Wash gently with soap & apply cold pack

Close-up of a mosquito feeding on human skin
Emergency check

Shortness of breath or hives? Call 911

PRACTICAL DECISION STEPS

Not sure what caused it?

Compare patterns, exposure, and timing without relying on a photo alone.

Understand the clues

Compare patterns, exposure, and timing without relying on a photo alone. Review where and when the contact happened to narrow the most likely causes.

Compare bite & sting clues →

Care for a mild reaction

Start with practical first-aid information for local itching, pain, and mild swelling. Clean the site, apply cold therapy, and avoid scratching.

Explore first-aid guides →

Know when to get help

Find warning signs that need prompt care or an emergency response. Whole-body symptoms, breathing changes, and severe pain require swift medical action.

Review warning signs →
FIRST-AID STARTING POINT

Small reaction? Start with the basics.

General information only. Severe symptoms need emergency care.

01

Move away & check

Leave the insect or nest area. Check for emergency symptoms before treating a local reaction.

02

Clean the area

Gently wash with soap and water. Follow the specific guide for a visible stinger or attached tick.

03

Cool & protect

For a mild local reaction, try a cold pack wrapped in a cloth. Avoid scratching or breaking the skin.

04

Watch for changes

Keep an eye on worsening pain, increasing redness, swelling, or signs of infection.

Important note: First-aid basics apply to mild local skin reactions only. Whole-body symptoms require immediate emergency care.
Review Warning Signs →
CRITICAL SAFETY CHECK

Know the signs that matter.

Check whole-body symptoms first. A small skin mark does not tell the whole story.

Emergency — Call 911

Call 911 now

Trouble breathing, swelling of the tongue or throat, fainting, or collapse can signal a severe allergic reaction (anaphylaxis). Do not delay emergency care.

  • Trouble breathing, wheezing, or chest tightness
  • Swelling of the tongue, throat, lips, or face
  • Fainting, dizziness, confusion, or collapse
  • Widespread hives, redness, or nausea far from the bite
Epinephrine guidance: If you have prescribed emergency epinephrine, use it as directed while getting emergency help.
Call 911 Now
Clinical Evaluation

Contact a clinician

Increasing redness, warmth, drainage, fever, or worsening pain can indicate infection or delayed complications that require professional care.

  • Increasing redness, warmth, or red streaks expanding outward
  • Pus, yellow crusting, or persistent fluid drainage
  • Fever, chills, body aches, or swollen lymph nodes
  • Expanding circular or bullseye rash after a tick bite
Clinician advice: Tell your clinician when and where the exposure happened and how your symptoms have changed over time.
Learn About Complications →
Safety references: AAAAI: anaphylaxis · CDC: after a tick bite · MedlinePlus: insect bites and stings.
OUTDOOR & HOME SAFETY

Enjoy the outdoors. Plan for the pests.

A few practical habits can reduce exposure at home, on the trail, and during travel.

DEET · Picaridin · OLE

Before you head outside

Use an EPA-registered repellent as labeled. Cover exposed skin when practical and avoid disturbing nests or standing tall grass.

Outdoor prevention →
Check Within 2 Hours

After outdoor time

Check for ticks after grassy or wooded exposure. Remove an attached tick promptly with clean, fine-tipped tweezers close to the skin.

Tick-bite guidance →
Screens & Water Management

Around your home

Repair window and door screens. Regularly empty and clean containers that collect standing water to disrupt mosquito breeding cycles.

Home & yard prevention →
Prevention references: EPA: repellent safety · CDC: mosquito prevention.
NEW GUIDES. USEFUL ANSWERS.

New guides. Useful answers.

Core research and evidence-based reviews of common home pest and repellent claims.

COMMON QUESTIONS

A little clarity goes a long way.

Quick answers to the questions readers ask first.

A photo may help document a reaction over time, but appearance alone cannot reliably diagnose an insect bite or sting. Many different bugs cause similar red bumps, and different skin types react uniquely. Context matters most: where you were, whether you felt pain immediately, and how the area evolves over the first 24 to 48 hours.
Call 911 immediately if you experience whole-body symptoms: shortness of breath, wheezing, throat tightness, swelling of the face, lips, or tongue, dizziness, nausea, hives distant from the sting site, or confusion. If you have prescribed emergency epinephrine, administer it right away while awaiting first responders.
Yes, remove honeybee stingers as quickly as possible. Speed matters much more than technique: gently scrape it away with a fingernail, credit card edge, or dull blade to avoid squeezing extra venom from the attached venom sac. Wash the area thoroughly with soap and water immediately afterward.
Seek medical care if you develop an expanding circular or bullseye rash (erythema migrans), fever, chills, body aches, fatigue, or swollen lymph nodes within 30 days of a tick bite. Also consult a healthcare provider if the tick was attached for 36 hours or longer in an area where Lyme disease is known to be endemic.
Notice: General educational information only. Severe symptoms or uncertainty require evaluation by a qualified healthcare professional.
OUR CLINICAL STANDARDS

Health information should be clear about its limits.

StingHelp is an educational resource for a U.S. audience. It does not diagnose a bite or replace care from a qualified healthcare provider.

Research & sources

See how guides are researched, how sources are chosen from peer-reviewed literature, CDC, and EPA, and where clinical uncertainty remains.

How we research →

Medical review

Understand what an article-level clinical review means and how review status is clearly indicated. Guided by medical reviewers like Dr. Sarah Jones, MD.

Medical review policy →

Updates & corrections

Learn how information is systematically updated as guidelines evolve and how to report a correction or clinical question to our editorial team.

Corrections policy →
SJ
Dr. Sarah Jones, MD

Board-Certified Emergency Medicine Physician · Clinical Medical Reviewer

Articles marked with the medical review seal undergo structured verification against active CDC, EPA, and AAAAI medical standards.