General Pest, Info Blog, Mozzies

Mosquito bites, treatment, prevention and the latest news.

Mosquito bites

In this article we will look into the latest news on the mosquito population and development, what are mosquito bites, why are they so itchy and why some of us appear to be so attractive.  What are the latest natural remedies and treatments for mosquito bites and what you can do to prevent getting bitten?

Table of contents

Mosquito bites

When mosquitoes bite, a little bit of their saliva is deposited into your skin and proteins in mosquito saliva spark a mild allergic reaction from your immune system, which leads to inflammation and itching.

After a mosquito bite, a lump will appear.  Occasionally a mosquito bite causes a large area of swelling, soreness and redness. This type of reaction, most common in children, is sometimes referred to as skeeter syndrome.

Mosquito biting

Symptoms of Mosquito Bites

Signs of mosquito bite include:

  • A puffy, white and reddish bump that appears soon after the bite
  • A hard, itchy, reddish-brown bump, or multiple bumps, appearing a day or so after the bite or bites
  • Small blisters instead of hard bumps
  • Dark spots that look like bruises

More severe reactions may be experienced by children and adults not previously exposed to the type of mosquito that bit them and also people with immune system disorders. Mosquito bites can potentially trigger a large area of swelling and redness accompanied by low-grade fever, hives and possible swollen lymph nodes.

Children are more likely to develop a severe reaction than are adults because many adults have had mosquito bites throughout their lives and become desensitized.

There are no specific cures or registered vaccines for most mosquito-borne diseases.  Avoiding mosquito bites is the only way to protect yourself against them.

Viruses and parasites that are transmitted by mosquitoes can also cause illness and death in animals.  Dog heartworm is caused by a parasitic worm passed on by mosquitoes which, in large numbers, can clog the dog’s heart and seriously affect blood flow.  

What makes us so attractive to Mosquitoes?

When it comes to attraction, the allure can begin even before the mosquito sets eyes on you. There seems to be something about the way you—her dinner—smells from afar that makes you a desired target. While you are outside with friends or preparing the barbecue, that mosquito will go on the hunt and you will become the next meal.

Scientists already know there are differences among us that contribute to why some of us get bitten more than others. Those of us who exhale more carbon dioxide seems to be a natural beacon for mosquitoes, in particular. Researchers have also found a correlation with body size, with taller or larger people tending to attract more bites—perhaps because of their carbon dioxide output or body surface area. There is also some evidence women who are pregnant or at certain phases of the menstrual cycle are more attractive to mosquitoes. Other work has found that people infected with malaria are more attracted to malaria-carrying mosquitoes during their transmissible stage of infection.

Why are mosquito bites itchy?

When a mosquito draws blood with the tip of its mouth, it injects some of its own saliva, which contains an anticoagulant that prevents your blood from clotting around the proboscis.  Your immune system recognizes the proteins as a foreign substance and your body produces an immediate attack. It releases a histamine reaction that causes the itching. The histamine also causes your blood vessels to enlarge, creating a circle, or swollen bump around the bite.

Your immune system could react to these allergies-inducing proteins for up to a week, which explains why an itchy bite can stay around for so long.

Not everyone has the same reaction, and some people will not even notice that they have been bitten. Over time people may also develop a tolerance to bites from mosquitoes of the same type.  But if you travel and encounter new species, you will get a severe reaction again.

Different mosquitoes produce different reactions.  For example, Aedes aegypti mosquitoes, which is the main vector for the Zika virus, feed during the day, with peak biting activity in the early morning and late afternoon hours.  They don’t always cause an itchy reaction. They can bite without being noticed because it approaches from behind and bites on the ankles and elbows.

mosquito blisters

Why you should not scratch mosquito bites.

You will want to scratch the itch, but that will only make it itchier.  When you scratch a mosquito bite your immune system releases compounds that create even more swelling and itching.

Scratching may also increase the risk of infection if it breaks the skin.  If the area becomes infected, it will be much itchier and will take longer to heal.

Some of the infections may manifest as sores and blisters that are often filled with pus.  An inflammation will often affect hair follicles of the skin and lead to folliculitis. When large areas of the skin and underlying tissues are affected, it is called cellulitis.  

Both conditions will have to be treated with locally applied antibiotic creams and ointments while infections such as cellulitis may require oral antibiotic pills.

West Nile virus infection is also carried by mosquitoes.  The symptoms include fever, headache, body aches, nausea, and vomiting. Complications can lead to meningitis which can result in death.

When to seek medical help for a mosquito bite:

See your doctor if, after being bitten, there is a lot of swelling or pus, which indicated an infection.

Call an ambulance or visit the hospital if you have any of the following symptoms:

  • Difficulty breathing
  • Nausea, vomiting or diarrhoea
  • A fast heart rate
  • Dizziness or feeling faint
  • Confusion, anxiety or agitation
  • Difficulty swallowing

How to stop mosquito bites from itching and mosquito bite relief?


This is an over-the-counter medication.  It will help reduce inflammation and itching and it is a very effective and fast way to treat mosquito bites.

Applying heat

Heat packApplying heat to a mosquito bite may help reduce inflammation and itching. Locally administered concentrated heat leads to a fast reduction of symptoms.  Usually, symptoms, including pain, disappear after 10 minutes of administration. All you have to do is heat up a metal spoon under hot tap water for a few minutes and press it directly against the bite.  Hold it against your skin for a couple of minutes and take it off and the itch should be gone. However, this should be administered as soon as you are bitten before the enzymes spread deeper into your skin.

A cold compress

A cold compress can also do the trick.  Anything containing essential oils like menthol, camphor, tea tree, eucalyptus, nutmeg and thymol is best.  These ingredients have anti-inflammatoryCold compress properties, helping to reduce pain, swelling and itching. Even something like toothpaste can work.  Even though the reaction will still be there, it will give you temporary relief from itching. A simple ice cube will also numb down the itching.

Your own saliva

There have been many experiences documented where people have experienced relief from itching of mosquito bites on the application of their own saliva to the itchy spot.  It helps to reduce the itching because saliva has been proven to speed up tissue repair and has antibacterial properties. It also provides a moisturising effect on the itchy spot.  So, if you don’t have anything else around this is a good option.

Apply Aloe Vera

Aloe Vera gel has been shown to have anti-inflammatory properties for wound healing and calming infections,  The cool feeling of the gel may also soothe any itchiness.

Use a cold tea bag

Green and black tea’s anti-swelling effect may not be useful just for swollen eyes.  Tea’s anti-inflammatory effects may help with the swelling. Soak the bag of green or black tea and put it in the fridge to cool down.  Apply the cold tea bag over the bite to ease the itchiness.

Colloidal Silver

Colloidal Silver applied on insect bites will provide immediate relief.  Apply directly to the bite, it will provide long-lasting immediate relief and will protect your skin from developing any infections.  It will accelerate the healing process while simultaneously helping prevent infection from setting in.

Protection against mosquitoes

Over many years it has been proven that Mosquitoes are getting resistant to the pesticides that have been used to kill them. Melinda Hadi, PhD, an entomologist with the Swiss mosquito net manufacturer Vestergaard, says that resistance in Anopheles mosquitoes is up in several countries that have the biggest problems with malaria already.  

Protecting ourselves when we do venture out is the most obvious response and something we can control. They include staying out of heavy bush and weeds, wearing protective clothing and appropriate insecticide, and most importantly, vigilantly checking ourselves for any symptoms.

Eliminating habitats for mosquitoes and ticks in private and public areas is critical.  Any standing water is a hazard as it can create a breeding ground for mosquitoes.

How to eliminate mosquitoes from your backyard

  • Dispose of all containers which hold water
  • Stock ornamental ponds with mosquito-eating fish such as goldfish.  Keep vegetation away from the water’s edge.
  • Keep your swimming pool well chlorinated, filtered and free of dead leaves.
  • Level or drain depressions in the ground that holds water.
  • Fit mosquito-proof covers to vent pipes on septic tanks systems.  It is recommended to seal all gaps around the lid and ensure leach drains are completely covered.  
  • Screen rainwater tanks with insect-proof mesh, including an inlet, overflow and inspection ports.  Remove water that is getting held in gutters and check to see if they are blocked.
  • Empty pot plants (especially bromeliads which hold water in their leaf axils).  Make sure to empty this weekly.

Every week residents should empty, scrub, turn over, cover or throw out items that hold water.

Many people are unaware that some mosquitoes can even lay eggs in a container inside the home, such as flower vases, pots and containers and these need to be checked on a regular basis.

Wearing insect-repelling clothing if travelling to a heavy mosquito area.

Make sure to use mosquito repellent sprays or creams to repel mosquitoes from your body. Reapply every 4 hours.

Use mosquito sprays to repel mosquitoes from the area or mosquito trap systems to lure and break the mosquito breeding cycle.

To read more about different mosquito prevention systems, click here.

Read more about Mosquitoes with Pestrol:

The Best Ways To Repel Mosquitoes >
Mosquito-borne diseases in Australia >
The Best Mosquito Traps and How They Work >
Can Mosquitoes Spread Covid-19 Virus? >
Top 10 Tips For Outdoor Mosquito Problems >
What does la nina mean for mosquito plague? >

Latest News on Mosquito Diseases.

October 12th, 2021

Mosquitoes can be fed beetroot-based mix juice which mimics blood meal, recent research has found. The research conducted at Stockholm University by a group discovered that the blood meal intake mixed with various types of toxins containing savoury oil, boric acid, fipronil sulfone and capsaicin can kill the mosquitoes within 100 to 350 minutes of feeding. This research has laid the foundation of a new era of insect control and it has given researchers worldwide an ability to control only blood-sucking species of mosquitoes.

October 5th, 2021

CSIRO along with other research institutes have successfully sterilised invasive species of mosquitoes to stop them from passing life-threatening diseases like dengue, yellow fever and Zika. This could be one of the biggest breakthroughs in the field of medical science that involved sterilising the mosquitoes with bacteria called Wolbachia and releasing around 3 million male mosquitoes in Northern Queensland. This bacteria stopped these male mosquitoes to be able to reproduce with wild females.

9 February 2021 (South Australia)

A case regarding a horse infected with West Nile Virus known as Kunjin has been reported in Adelaide Hills, South Australia. This strain of the virus can be transmitted by mosquitoes and can transmit diseases to humans as well as horses. The South Australian government has issued an alert and suggested horse owners take extra measures such as covering horses, eliminating mosquito breeding areas and using insecticide to control the mosquito population in the area.

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