Daily Mirror

How to NEVER get bitten or stung again (hopefully)

- BY FIONA DUFFY

THE number of horseflies has rocketed in recent weeks as many pests and insects thrive in the heat.

Scarily, visitors to France are being urged to protect themselves against a growing spread of mosquitoes carrying Zika and dengue fever.

Here in Blighty, mosquitoes don’t carry tropical illnesses (yet!), but the number of calls to the NHS 111 helpline about insect bites has doubled in comparison to the same time last year, due to the hot weather. And as with all bites and stings, they can trigger pain, itchiness and a risk of infection.

So why are some people more prone to attack? Can you reduce the risk? And is it possible to stop a nip turning nasty?

Here is everything you need to know...

Bites and stings are different things!

“A sting comes from the rear end of the insect and involves the injection of venom (a toxin), while a bite, where the insect injects saliva into the skin, comes from the front,” explains Dr James Logan, of the London School of Hygiene and Tropical Medicine.

“They also feel different. A sting often creates an immediate burning sensation and you’re usually aware of the insect nearby. Biting insects are often smaller (except horseflies) so are harder to spot.

“The injection of saliva can act both as an anticoagul­ant to stop your blood from clotting and an anaestheti­c, so you don’t feel the bite immediatel­y.”

Why do bugs bite and sting?

To survive! “There are two main categories – those that bite to reproduce, such as mosquitoes and ticks, and those that sting as a self-defence mechanism, like bees and wasps,” says bite expert Howard Carter. Interestin­gly, it’s only females that bite and sting.

Why do some people get bitten more than others?

“It’s all to do with genes and the way you smell,” says Dr Logan. “Some people produce natural repellents in their body odour which make them less attractive.”

Those who produce natural ‘attractors’, such as higher levels of chemicals like lactic acid, can attract mosquitoes from a distance of up to 115 feet, says herbalist and adviser to Puressenti­el oils, Dr Chris Etheridge.

Studies also show that mosquitoes are attracted to people with blood group O, a higher metabolism and a higher carbon dioxide production rate.

“Mosquitoes are also attracted to bacteria on your skin, which may explain why they are drawn to ankles and feet, where bacteria can settle,” he adds. They like sweat and alcohol, too.

Why do some people react more than others?

“When you are bitten or stung, the body’s immune system is fired into action – producing a chemical called histamine to help protect the cells from infection,” explains Dr Logan. The histamine causes inflammati­on and swelling of the skin as the blood vessels expand, which can lead to itchiness. But how we react is unique and down to our own personal allergic response, explains Natalie Fisher, specialist dermatolog­y nurse.

“The more histamine you release in response to the venom or saliva, the greater the reaction at the site of the bite or sting. If you suffer with hayfever, eczema or other allergies, then you are more likely to react to insect bites and stings than someone who doesn’t,” she says.

Some people may also have a mild allergic reaction to the actual saliva or venom which can lead to the area becoming swollen, red and painful, adds Superdrug expert Kathryn Granleese. These symptoms usually resolve within a week.

Those with sensitive skin, autoimmune conditions, such as Lupus, or a history of allergic reactions may also respond more severely. Extreme allergic reactions, known as anaphylaxi­s, can be potentiall­y life-threatenin­g.

Symptoms include weakness (caused by a drop in blood pressure), difficulty breathing, dizziness and swelling of the face or neck. If any of these occur, call 999 immediatel­y.

Why do some bites or stings turn nasty?

“The skin’s main role is to act as a barrier,” explains Natalie. “Once the skin is broken from a bite or sting, bacteria can get in and cause complicati­ons, such as cellulitis.”

Bacteria can come from our own skin, from under fingernail­s (if we scratch) or even from the insect as it stings or bites, say experts.

And the danger shouldn’t be underestim­ated. “There are cases of people having to have limbs amputated because of infected bites,” warns Dr Logan.

Preventing stings…

“Wasps, bees and other insects only ever sting in desperatio­n,” says Dave Goulson, Professor of Biology at the University of Sussex. “They usually land on humans in search of water or to investigat­e a smell.”

If you stay still and calm, they will lose interest and fly away, advise experts. If you flap your arms and scream, they may think they are under attack and sting in self-defence.

… and bites

Cover skin with long sleeves and trousers, especially between dawn and dusk when bugs are more active. Avoid florals, blacks, blues and greens and opt for lightcolou­red clothing, advises Howard.

Wear shoes (to avoid accidental­ly standing on bugs) and avoid strongly perfumed products.

Use air-conditioni­ng or a fan – even outdoors. “Mosquitoes have a problem flying in even a slight breeze,” says Howard. Avoid sitting near ponds and paddling pools, which attract bugs.

Certain body odours also draw insects, so wash thoroughly and regularly.

Wear insect repellent. “The most effective repellents contain DEET, which is why it’s the most common active ingredient in repellents,” explains K “It needs to contain 20-50% and sho provide protection for up to 12 hou

However, some people dislike strong smell and toxicity – and stud also suggest that mosquitoes becoming more tolerant of it.

An alternativ­e option is Icaridin picaridin, a synthetic compo thought to equal repellents with DEET. Try Sawyer Picaridin In Repellent (£8.99, outdoormeg­as co.uk), which claims to be virtu odourless and evaporates quickly applying.

Don’t forget to apply repellent t ears, wrists and ankles where sk thinner – leaving blood vessels clo the surface, says Howard.

Prefer natural products? Try l eucalyptus (or PMD) repellents. ucts include Incognito spray or r (£8.49, lessmosqui­to.com) or Avo Soft Original Dry Oil spray (£2.50 uk.com). Although it’s prima moisturise­r, customers (includin Royal Marines) swear by its in repelling powers.

It’s all to do with genes and the way you smell. Some people produce natural repellants in their odour

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