NHS shares symptoms and first aid for 14 different types of insect bites

The NHS has released a guide detailing all possible insect bites you may encounter as temperatures rise in Britain. While summer brings joy to many people who enjoy outdoor activities under the sun, it also increases the chances of encountering insects.

From enjoying a stroll in the park or relaxing in your backyard, you can easily get struck down by an insect bite. If you do get bitten, the symptoms can be uncomfortable and in extreme situations, life-threatening.

In many cases, a bite can cause swelling, a red rash and itching. However, with the NHS' latest list, people can now identify what specific type of bite they have, the insect responsible, and how to properly treat it.

It is important to note, most insect bites and stings are not serious and will get better within a few hours or days. But occasionally they can become infected, cause a severe allergic reaction (anaphylaxis) or spread serious illnesses such as Lyme disease and malaria.

It can be difficult to identify what you were bitten or stung by if you did not see it happen. But do not worry if you're not sure –the treatment for most bites and stings is similar. Bugs that bite or sting include: wasps, hornets, bees, horseflies, ticks, mosquitoes, fleas, bedbugs, spiders and midges.

1. Wasp and hornet stings

A wasp or hornet sting causes a sudden sharp pain at first. A swollen red mark may then form on your skin, which can last a few hours and may be painful and itchy.

Sometimes a larger area around the sting can be painful, red and swollen for up to a week. This is a minor allergic reaction, that is not usually anything to worry about.

A few people may experience a serious allergic reaction (anaphylaxis), causing breathing difficulties, dizziness and a swollen face or mouth. Dial 999 for an ambulance immediately if you have these symptoms.

2. Bee stings

A bee sting feels similar to a wasp sting, but the sting will often be left in the wound. You should remove it as soon as possible to prevent any more venom being released.

Scrape the sting out sideways with something with a hard edge, such as a bank card, or your fingernails if you don't have anything else to hand. Don't pinch the sting with your fingers or tweezers because you may spread the venom.

The sting can cause pain, redness and swelling for a few hours. As with wasp stings, some people may have a mild allergic reaction that lasts up to a week.

Serious allergic reactions can also occasionally occur, causing breathing difficulties, dizziness and a swollen face or mouth. Dial 999 for an ambulance immediately if you have these symptoms.

3. Mosquito bites

Bites from mosquitoes often cause small red lumps on your skin. These are usually very itchy. Some people may also develop fluid-filled blisters. Mosquitoes don't cause major harm in the UK, but in some parts of the world they can spread serious illnesses such as malaria.

Get medical help right away if you develop worrying symptoms, such as a high temperature, chills, headaches and feeling sick, after a mosquito bite abroad.

4. Tick bites

Tick bites are not usually painful, so you may not realise you've been bitten straight away. Symptoms of a tick bite can include:

a small red lump on the skin
swelling
itchiness
blistering
bruising

Ticks in the UK can sometimes carry a potentially serious infection called Lyme disease. See your GP if you develop any symptoms of Lyme disease, such as a rash that looks like a "bull's-eye on a dartboard" or a fever.

If you have been bitten by a tick and it's still attached to your skin, remove it as soon as possible to reduce your risk of picking up illnesses such as Lyme disease.

To remove a tick:

Use a pair of tweezers that will not squash the tick (such as fine-tipped tweezers) or a tick removal tool (available from pet shops or vets).
Grip the tick as close to the skin as possible to ensure the tick's mouth isn't left in the skin.
Pull steadily away from the skin without crushing the tick.
Wash your skin with water and soap afterwards, then apply an antiseptic cream to the skin around the bite.

If you use a tick removal tool follow the manufacturer's instructions. Do not use a lit cigarette end, a match head or substances such as alcohol or petroleum jelly to force the tick out.

5. Horsefly bites

A bite from a horsefly can be very painful and the bitten area of skin will usually be red and raised. You may also experience:

a larger red, raised rash (called hives or urticaria)
dizziness
weakness
wheezing
part of your body becoming puffy and swollen

Horsefly bites can take a while to heal and can become infected. See your GP if you have symptoms of an infection, such as pus or increasing pain, redness and swelling.

6. Midge or gnat bites

Midge and gnat bites often look similar to mosquito bites. They usually cause small, red lumps that can be painful and very itchy, and can sometimes swell up alarmingly. Some people may also develop fluid-filled blisters.

7. Bedbug bites

Bedbug bites typically occur on the face, neck, hands or arms. They're typically found in straight lines across the skin. The bites are not usually painful, and if you've not been bitten by bedbugs before, you may not have any symptoms. If you have been bitten before, you may develop itchy red bumps that can last for several days.

8. Mite bites

Mite bites cause very itchy red lumps to develop on the skin and can sometimes also cause blisters. Mites usually bite uncovered skin, but you may be bitten on your tummy and thighs if your pet has mites and has been sitting on your lap. Some mites burrow into the skin and cause a condition called scabies.

9. Flea bites

Flea bites can cause small, itchy red lumps that are sometimes grouped in lines or clusters. Blisters may also occasionally develop.

Fleas from cats and dogs often bite below the knee, commonly around the ankles. You may also get flea bites on your forearms if you've been stroking or holding your pet.

10. Spider bites

Bites from spiders in the UK are uncommon, but some native spiders – such as the false widow spider – are capable of giving a nasty bite. Spider bites leave small puncture marks on the skin, which can be painful and cause redness and swelling.

Some spiders bites can cause you to feel or be sick, sweating and dizziness. Bites can also become infected or cause a severe allergic reaction in rare cases. Get medical help immediately if you have any severe or worrying symptoms after a spider bite.

11. Ant stings and bites

The most common ant in the UK, the black garden variety, does not sting or bite, but red ants, wood ants and flying ants sometimes do. Ant bites and stings are generally harmless, although you'll probably feel a nip and a pale pink mark may develop on your skin. Sometimes the bitten area may be painful, itchy and swollen.

12. Ladybird bites

All ladybirds can bite, but a type called the harlequin ladybird found throughout much of the UK is more aggressive and tends to bite more often. The harlequin ladybird can be red or orange with multiple spots. Look out for a white spot on its head – other ladybirds do not have these patches. Ladybird bites can be painful, but are not usually anything to worry about.

13. Flower bug bites

Flower bugs are common insects that feed on aphids and mites. You can identify the common flower bug by its tiny oval body, reflective wings and orange-brown legs. Flower bugs bites can be painful and very itchy, and are often slow to heal.

14. Caterpillar hairs

The caterpillars of the oak processionary moth are a real pest. They were first found in the UK in 2006 and are now in London and parts of southeast England.

In late spring and summer, the caterpillars have thousands of tiny hairs that can cause itchy rashes, eye problems and sore throats – and very occasionally breathing difficulties. The caterpillars walk up and down trees in nose-to-tail processions.

If you find them, or spot one of their white silken nests, report it to the Forestry Commission or to your local council. If a caterpillar of the oak processionary moth gets on your skin:

Use tweezers or a pen to remove it.
Try not to disturb it (for example, by brushing it with your hands) as it will then release more hairs.
Rinse your skin with running water, allow it to air dry and then use sticky tape to strip off any leftover hairs.
Use calamine, ice packs or a pharmacy remedy containing 3.5% ammonia to relieve the itch.
Remove all contaminated clothes and wash at as a high a temperature as the fabric allows.

Do not towel yourself dry after rinsing or use creams containing antihistamine.

What to do if you've been bitten or stung

To treat an insect bite or sting:

remove the sting or tick if it's still in the skin
wash the affected area with soap and water
apply a cold compress (such as a flannel or cloth cooled with cold water) or an ice pack to any swelling for at least 10 minutes
raise or elevate the affected area if possible, as this can help reduce swelling
avoid scratching the area, to reduce the risk of infection
avoid traditional home remedies, such as vinegar and bicarbonate of soda, as they're unlikely to help

The pain, swelling and itchiness can sometimes last a few days. Ask your pharmacist about medicines that can help, such as painkillers, creams for itching and antihistamines.

Relieving the symptoms of an insect bite or sting

If you have troublesome symptoms after an insect bite or sting, the following treatments may help:

For pain or discomfort – take over-the-counter painkillers, such as paracetamol or ibuprofen (children under 16 years of age shouldn't be given aspirin).
For itching – ask your pharmacist about suitable treatments, including crotamiton cream or lotion, hydrocortisone cream or ointment and antihistamine tablets.
For swelling – try regularly applying a cold compress or ice pack to the affected area, or ask your pharmacist about treatments such as antihistamine tablets.

See your GP if these treatments don't help. They may prescribe stronger medicines such as steroid tablets.

When to get medical advice

Contact your GP or call 111 for advice if:

you're worried about a bite or sting
your symptoms do not start to improve within a few days or are getting worse
you've been stung or bitten in your mouth or throat, or near your eyes
a large area (around 10cm or more patch of skin) around the bite becomes red and swollen
you have symptoms of a wound infection, such as pus or increasing pain, swelling or redness
you have symptoms of a more widespread infection, such as a high temperature, swollen glands and other flu-like symptoms

When to get emergency medical help

Dial 999 for an ambulance immediately if you or someone else has symptoms of a severe reaction, such as:

wheezing or difficulty breathing
a swollen face, mouth or throat
feeling sick or being sick
a fast heart rate
dizziness or feeling faint
difficulty swallowing
loss of consciousness

Emergency treatment in hospital is needed in these cases.

Preventing insect bites and stings

There are some simple precautions you can take to reduce your risk of being bitten or stung by insects. For example, you should:

remain calm and move away slowly if you encounter wasps, hornets or bees – don't wave your arms around or swat at them
cover exposed skin by wearing long sleeves and trousers
wear shoes when outdoors
apply insect repellent to exposed skin – repellents that contain 50% DEET (diethyltoluamide) are most effective
avoid using products with strong perfumes, such as soaps, shampoos and deodorants – these can attract insects
be careful around flowering plants, rubbish, compost, stagnant water, and in outdoor areas where food is served

You may need to take extra precautions if you're travelling to part of the world where there's a risk of serious illnesses. For example, you may be advised to take antimalarial tablets to help prevent malaria.

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