Anna – Carshalton

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Infected Insect Bite

Infected Insect Bite Treatment

Most insect bites are nothing more than a passing irritation. A little redness, a bit of itching, and they are gone within a couple of days. But sometimes a bite gets infected, and when that happens, it needs proper attention. At Anna Pharmacy, our pharmacists can assess and treat infected insect bites through the NHS Pharmacy First scheme, with no GP appointment needed. We have branches in Carshalton, Sutton, and Hackbridge, and we also welcome patients from Croydon, Richmond, Epsom, Stoneleigh, and Wallington.
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Where Is This Service Available?

Our infected insect bite treatment through Pharmacy First is available at all three Anna Pharmacy branches:

Anna Pharmacy Carshalton

398 Green Wrythe Lane
Carshalton Sutton
SM5 1JF
United Kingdom

Book at This Branch

Anna Pharmacy Hackbridge

186 London Rd, Hackbridge
Wallington
SM6 7FW
United Kingdom

Book at This Branch

Anna Pharmacy Tudor

107 Wrythe Ln
Sutton
Carshalton
SM5 2RR

Book at This Branch

We also welcome patients travelling from the surrounding areas, including Croydon, Richmond, Epsom, Stoneleigh, and Wallington. Whichever branch is most convenient for you, our team is ready to help. 

What Is an Infected Insect Bite?

An insect bite becomes infected when bacteria enter the skin through the wound. This can happen after being bitten by a mosquito, midge, flea, horsefly, or other insect and is often made worse by scratching, which introduces more bacteria and breaks the skin further.

It is worth knowing that some bites carry additional risks beyond infection. Tick bites, for example, can occasionally transmit Lyme disease, which is why a bullseye-shaped rash or flu-like symptoms following a tick bite should always be assessed promptly.

Infected Insect Bite

Signs That a Bite May Be Infected

A normal bite will cause a small raised lump, some redness, and itching that settles within a few days. If the bite becomes infected, the signs are usually more persistent and more pronounced. Look out for:

  • Skin around the bite that feels warm or hot to the touch
  • Redness or swelling that is spreading beyond the original bite area
  • Increasing pain rather than gradual improvement
  • Pus or fluid leaking from the bite
  • A high temperature or feeling generally unwell

On brown or black skin, redness can be harder to spot. Warmth, swelling, and tenderness are just as reliable indicators, so do not rely on visual redness alone.

How Anna Pharmacy Can Help

Through Pharmacy First, our pharmacists can do everything a GP would for an infected insect bite. Here is what to expect when you visit us:

A Proper Assessment

Our pharmacist will look at the bite, ask about your symptoms, and establish whether it is infected or simply reacting normally.

Treatment on the Spot

We can recommend antihistamines and steroid creams for mild reactions, and where infection is confirmed, we can prescribe antibiotics directly through the Pharmacy First scheme.

Advice You Can Trust

If the bite needs further medical attention beyond what we can provide, we will tell you clearly and direct you to the right place without delay.

What You Can Do Straight Away

If you have just been bitten, these steps can help reduce the risk of infection and ease early symptoms:

  • Wash the area thoroughly with soap and water as soon as possible.
  • If a sting is visible in the skin, scrape it out sideways rather than squeezing it.
  • Apply a cold compress or ice pack wrapped in a cloth for at least 20 minutes if the area is swollen.
  • Keep the area elevated where practical to reduce swelling.
  • Take paracetamol or ibuprofen if the bite is painful.
  • Use an antihistamine to manage itching, but avoid antihistamine cream if caterpillar hairs are involved.
  • Try not to scratch, as this is the most common way a bite becomes infected.

Do not use home remedies such as bicarbonate of soda on the bite. If things are not settling or you notice any signs of infection, come and see us.

Not Sure If Your Bite Is Infected?

If you are unsure whether what you are seeing is a normal reaction or the start of an infection, come in and let us take a look. It is always better to get it checked early. Book your appointment online at our Carshalton, Sutton, or Hackbridge branch today.
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Frequently asked questions

An infected bite will feel warm to the touch, appear increasingly swollen, and may produce pus or discharge. Pain that worsens rather than improves over the first couple of days is another clear indicator. If you notice any of these signs, come in and see us at any of our branches.
Yes. Through Pharmacy First, our pharmacists can prescribe antibiotics for an infected insect bite in the same way a GP would. Book your appointment at our Carshalton, Sutton, or Hackbridge branch.
No, not all infected bites require antibiotics. Many can be managed with antihistamines, steroid cream, and good wound care. Our pharmacist will assess the bite and recommend the most appropriate treatment based on what they find.
Go to A&E or call 999 immediately if you or your child develops difficulty breathing, swelling of the face, lips, or throat, a rapid heartbeat, or dizziness after being bitten. These are signs of anaphylaxis, which is a severe allergic reaction and a medical emergency.
Yes, for children aged one year and over, our pharmacists can assess and treat infected insect bites under NHS Pharmacy First. For babies under 12 months, please contact your GP or call 111 for guidance, as very young babies need a medical assessment.
Remove the tick carefully using fine-tipped tweezers, grasping it as close to the skin as possible and pulling upward steadily. Do not twist or crush it. If you develop flu-like symptoms or a ring-shaped rash around the bite in the days or weeks afterwards, book an appointment with us or speak to your GP promptly, as these can be early signs of Lyme disease.

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