Most people will experience a bug bite or sting at some point in their lives—from flea bites to bee stings—they are unpleasant but usually nothing to worry about. This article will discuss the different types of bug bites, bug bite symptoms, bug bite relief, and bug bite prevention. So next time you’re headed outdoors, you’ll be armed with all the information you need to deal with any surprises that may be delivered by one of your many-legged neighbors.

Symptoms of a Bug Bite or Sting.

You’ll normally notice if you’re being stung or bitten by a bug, but sometimes the resulting itch or irritation will be the first thing that alerts you to the problem. Most bug bites and stings are short-lived and nothing to worry about, but it’s important to be aware of what the typical symptoms are, when you can use bug bite relief at home, and when you should seek extra medical support.

Below are some of the most common symptoms of a bug bite or sting:

  • Pain – There is often an initial shot of pain when the sting or bite first happens. This can feel sharp and quick.
  • Raised bumps on the skin – Bumps caused by a sting or bug bite could be red or discolored. There might be a single bump, or multiple bumps that form a line or cluster. 
  • Itchiness – Itching is very common at the site of a bug bite or sting. You might also feel mild tingling or burning in the same area.
  • Swelling – Minor swelling could make the area around the bite or sting look puffy. Be aware that major swelling is normally a sign of something more serious.


Some stings and bites from more venomous animals, like black widow spiders, brown recluse spiders, and scorpions, have more severe reactions. If you notice any of the following symptoms, seek medical help immediately:

  • Excessive sweating. 
  • Nausea, vomiting, or cramping. 
  • Slurred speech. 
  • Excess saliva production. 
  • Numbness, pain, or stiffness. 
  • Sensitivity to light. 


There’s also a chance that you could have an allergic reaction to a bug bite or sting. No matter how common the bite or sting—if you’re allergic, you’ll need to seek medical attention as soon as possible. Below are symptoms of allergic reaction from a bug bite or sting:

  • Dizziness or fainting.
  • Fast pulse.
  • Hives.
  • Muscle spasms.
  • Nausea, vomiting, or diarrhea.
  • Seizures.
  • Swelling of the tongue or throat.
  • Trouble breathing or swallowing.
  • Wheezing.1

Why do Bug Bites itch?

Ever wondered why getting bitten by a mosquito makes you so itchy? It’s all down to a chemical called histamine, a substance created naturally in the body. When you get a bug bite, the bug’s saliva enters your skin, which your immune system recognizes as a foreign material. It reacts by sending histamine to the site of the bite to get rid of the invading substance. Histamine causes itching as your body fights back at the bug bite.

Different Types of Bug Bites and Stings.

There are lots of bugs in the world, and they vary depending on location and climate, but certain types of bug bites and stings tend to be more common than others. Below are some different types of bug bites and stings and the key things you need to know about them:

Types of bug bites or stings. 

Appearance. 

Symptoms. 

Treatment.

Bed Bugs. 

Raised skin resembling a pimple. 

Bumps in a line or pattern 

Blisters containing clear fluid 

Itching.

Burning. 

Mild pain.

Wash bites with soap and water. Bed bugs that swell and itch can be treated with a hydrocortisone cream for bed bug bites.2

Mosquito.

Raised circular bump on the skin. 

A dark spot in the centre of the bump where the bite occurred.

Itchy skin.

Possible allergic reaction (hives, swollen throat, faintness).

Symptoms of an infectious disease carried by mosquitos. 

Apply a topical anti-itch cream for mosquito bites and take an antihistamine to prevent itching. 

Seek medical help if more serious symptoms occur.

Prevent mosquito bites using insect repellant containing DEET.3

Flea.

Small discolored bumps often below the knee. 

A discolored ring around the bump.

Bumps in a straight line or cluster. 

Itchy, irritated skin.

Possible allergic reaction (hives, shortness of breath, swelling).

Symptoms of an infectious disease carried by fleas. 

Use an over-the-counter hydrocortisone cream for flea bites and antihistamines to treat the itching. Try not to scratch the bites.4

Bee.  

Skin discoloration.

A bump under the skin 

A dot mark where the stinger pierced the skin. 

Sharp, burning pain.

Swelling.

Itching. 

Possible allergic reaction (hives, swelling of the throat, difficulty breathing). 

Remove the stinger and clean the wound with soap and water. Use ice to treat swelling and use antihistamine and pain medication to relieve symptoms.

Seek medical help immediately if you see signs of allergic reaction.

If you already know you have an allergy to bee stings, use your EpiPen.5

Wasp

Redness around the sting.

Bump on the skin.

A dot mark where the stinger pierced the skin. 

Pain.

Swelling.

Itching.

Possible allergic reaction (hives, swelling of the throat, difficulty breathing). 

Use over-the-counter antihistamine and hydrocortisone cream.

If you have an allergy to wasp stings, use your EpiPen. If you notice signs of an allergic reaction, seek medical help immediately.

Also seek medical attention if you have multiple yellow jacket wasp stings as these can cause additional complications.*6

Ant 

Pimple-like bump on the skin.

Redness.

Blisters (fire ant).

A sharp pinch.

Itching.

Pain or burning. 

Wash the area with antibacterial soap to prevent infection. If there is swelling, ice can be used to reduce it. 

Painkillers can reduce pain while hydrocortisone cream can help to reduce itching.7

Spider. 

Redness.

Bump on the skin.

Blister.

Fang marks. 

Sharp pinprick feeling.

Pain.

Swelling.

More severe symptoms from black widow, brown recluse and hobo spiders:

Trouble breathing.

Severe headache.

Muscle cramps. 

Most spider bites can be treated by gently cleaning the area, applying a cold damp washcloth, and treating with over-the-counter antihistamine and pain relief.

If you experience more severe symptoms or think you may have been bitten by a black widow, brown recluse or hobo spider, seek medical attention quickly. You may need an antivenom or other treatment.8

     Tick 

Often no visible sign.

Rash that looks like a circle or bulls eye.

A bump on the skin.

A tick attached to the skin. 

Itching.

Symptoms of tick-borne illnesses:

Fever.

Chills.

Muscle pain.

Headaches.

Tiredness.

Nausea and vomiting.

Swollen lymph nodes.** 

Remove the tick and clean the area. Take photos of the tick and wound, and if possible, keep the tick in a container.

See a medical expert if you experience more severe symptoms, experience pain at the site of the bite, develop a rash, or develop flu-like symptoms.

Antibiotics or antiparasitics can be used to treat some tick-borne illnesses. Others have no treatment.9

 

 

Bug Bite Treatment.

Most bug bites or stings can be treated easily at home, with a few exceptions: If you think you’ve been stung or bitten by a scorpion, brown recluse or black widow spider, get medical attention as soon as possible. If you have a known allergy and your doctor has already prescribed you an EpiPen, use it as directed and seek medical attention. 

Below is some general first aid information for at-home bug bite relief to stop bug bites itching:

  • Remove the stinger – check if the bug has left a stinger under your skin. If so, this should be removed to prevent more venom from entering the wound. Use a credit card to gently push the sting out. 
  • Remove the bug – If the bug is still sitting on you, you might need to shake out your clothes. In the case of a tick bite, you might need to use tweezers to remove the tick from underneath your skin. 
  • Clean the wound – Gently clean the area with soap and water to prevent an infection in the broken skin. 
  • Use a cold compress for swelling and pain – If the area is swollen you can use a cold washcloth or icepack to help reduce the swelling. This can also help to ease pain symptoms. 
  • Use over-the-counter pain killers – medicines like NSAIDs are effective for managing the pain or aching of a bug bite or sting.1

How to stop Bug Bites itching?

Many different types of bug bites can leave you with itchy skin, and while it can be difficult to resist, it’s important to try not to scratch them—this can not only make the itching worse but can break the skin and lead to infection. So, if you can't scratch them, how do you stop bug bites itching? There are a number of over-the-counter treatments available for bug bite relief, including: 

  • Antihistamines: These work by suppressing your body’s histamine response to reduce its reaction to the sting or bite. 
  • Hydrocortisone: This is a topical steroid, also used for eczema, that decreases the itch associated with bug bites and stings. 
  • Aloe vera: Gels made from extracts of the aloe vera plant are known for their cooling and soothing effects.1

Hydrocortisone Cream for Bug Bites.

If you’re struggling with an itchy bite or sting, an over-the-counter hydrocortisone treatment can help stop the itching and soothe the skin to give you some much-needed relief. When applied topically it helps to reduce itching caused by a bug bite or sting.10

Bug Bite Prevention.

  • If you’re headed outdoors there are lots of simple ways to reduce your chances of getting a bug bite or sting. Here are some practical tips for bug bite prevention: 
  • If you’ll be in an area where bugs are expected—like near water where mosquitos live—make sure you apply bug spray, ideally one containing DEET. 
  • Wear long sleeved tops and tuck your pants into your boots to prevent exposed skin when visiting wooded areas or long grass where ticks or other bugs could be lurking. 
  • Steer clear of flowering plants and trees with ripe fruit, since these are a couple of things bees love. 
  • Avoid applying perfume and using scented soaps when you’re getting ready to head outdoors. 
  • Bees are attracted to bright colors and flowered prints, so keep your wardrobe neutral if bees are a concern. 
  • If you get caught in or near a swarm, move away with slow, deliberate movements. Do not try to swat bees as this could aggravate them and encourage a sting. 
  • Check firewood for spiders before picking it up or bringing it indoors. 
  • Cover up food at picnics to prevent attracting bees.1

When to see a doctor.

While most bug bites and stings can be managed at home with over-the-counter bug bite relief, there are some situations where you should seek medical attention, including:

  • If you suspect you’ve been stung or bitten by a scorpion, brown recluse or black widow spider.
  • If you have a known allergy.
  • If you suffer multiple bee or wasp stings.
  • If you have a bite or sting near your eye.
  • If you experience severe itching or swelling.
  • If you have open wounds due to itching.
  • If your symptoms worsen or do not relieve after a few days.
  • If you see signs of skin infection, like pus.
  • If you experience symptoms of insect-borne illnesses.1

FAQs about Bug Bites.