Treating itchy mosquito bites – when you should get medical attention

Mosquito bites: Dr Mark shares advice on the best remedies

Mosquitoes prefer warm weather, so during UK summer time is when they like to come out in force.

Mosquito bites appear as a puffy, reddish, itchy bump. According to Kanani, Pharamacist at Chemist Click Online Pharmacy, people with a heightened immune response can have more significant itching and swelling.

While the temptation is high for scratching a mosquito bite, Kanani said scratching can worsen the itching sensation and increase irritation to the skin.

He added: “This can also transfer bacteria from the nails, leading to secondary infections and more intense itching.

“Allergic reactions can trigger a more pronounced immune response, a condition known as skeeter syndrome which causes severe itching, swelling and even blistering at the bite site.

“Different species have varied salivary compositions and some mosquitos may cause a stronger immune response than others.”

So what can you do to treat really itchy mosquito bites?

One of the best things you can do is avoid itching, said Kanani.

“Although it can be difficult, refrain from scratching the bite because this exacerbates the itching and increases the risk of subsequent infections.

“Applying anti-itch creams or lotions that contain ingredients like hydrocortisone, calamine or menthol provide temporary relief from itching.

“Over-the-counter oral antihistamines can help reduce the itching and swelling associated with mosquito bites. Fexofenadine is a strong antihistamine containing the active ingredient, fexofenadine hydrochloride. It is used to treat symptoms of itchy skin, as well as allergy and hay fever.

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“If you do not have access to over-the-counter treatments, try applying a cold compress or ice pack to the area which can help numb it and reduce inflammation and itching.”

When should you get medical attention?

Generally, mosquito bites are harmless and do not require medical attention, said Kanani.

“Symptoms such as difficulty breathing, hives, facial swelling or dizziness could indicate a severe allergic reaction.

“Anaphylaxis is a serious and potentially life-threatening allergic reaction and you should seek immediate medical attention. Increased redness, warmth, swelling, pus or worsening pain can all be signs of a bacterial infection which may require to be treated with a course of antibiotics.

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“It is also worth checking with your doctor if you notice symptoms worsen over time or new symptoms develop.”

Why do some people get bitten by mosquitoes and others don’t?

There are certain chemical compounds and scents that are released by the human body which mosquitoes are attracted to and people who produce higher amounts of these chemicals or emit certain odours may be more attractive to them, explained Kanani.

“They’re particularly attracted to carboxylic acids, the oily secretions that hydrate and protect our skin.

“Larger people or those who exercise frequently may exhale more carbon dioxide which can make these people more appealing to mosquitoes because they are drawn to carbon dioxide. Similarly, higher body temperatures or those who are physically active may be more prone to mosquito bites.

“Specific composition of the bacteria on the skin may also influence their attractiveness to mosquitoes and affect how frequently you are bitten.”

Your local pharmacist can advise you about medicines that can help ease the symptoms of a bite, says the NHS.

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