Most insect bites are more of a nuisance than a worry. A small itchy lump appears, you try not to scratch it, and within a few days it’s gone. Sometimes, though, a bite doesn’t settle and instead gets redder, more swollen and more painful.
An infected insect bite happens when bacteria get into the skin through the bite, often after scratching. Most infections are mild and respond well to treatment when caught early, so knowing what to look out for can help you get the right treatment sooner.
What Does an Infected Insect Bite Look Like?
It’s normal for a bite to be red, swollen and itchy for a day or two. An infection usually shows up a few days later, when the bite gets worse rather than better. Signs include:
- Redness or swelling spreading around the bite
- Skin that feels hot or tender to touch
- Pain that is increasing rather than easing
- Pus or yellow fluid coming from the bite
- A high temperature, swollen glands or feeling generally unwell
If you’re checking for an infected mosquito bite symptom, the signs are the same. On brown or black skin, redness can be harder to see, so look out for warmth, swelling and pain.
How to Treat an Infected Insect Bite
For a mildly irritated bite, these simple steps can help:
- Wash the area gently with soap and water
- Hold a cold compress on it to reduce swelling
- Avoid scratching, which lets more bacteria in
- Use an antihistamine or mild steroid cream for itching, if suitable
Once a bite shows signs of infection, home care may not be enough. Treatment may include antibiotics, and under the NHS Pharmacy First service a pharmacist can assess your bite and supply them where appropriate, without a GP appointment.
When Is an Infected Insect Bite Urgent?
Call 999 or go to A&E if someone has:
- Difficulty breathing or swallowing
- Swelling of the face, lips, mouth or throat
- Dizziness, a racing heart or feeling faint
These can be signs of a serious allergic reaction. Contact NHS 111 urgently if redness is spreading quickly, you were bitten near your eye, or you have a high temperature and feel very unwell. The NHS guidance on insect bites and stings explains the warning signs in more detail.
Infected Insect Bite Treatment in Bebington
If a bite isn’t healing, you don’t need to wait for a GP. At The Pharmacy Bebington, our pharmacists can check it in a private consultation room and recommend the right treatment, whether that’s a soothing cream, an antihistamine or antibiotics through Pharmacy First. The service is available to eligible patients aged one and over.
Book your infected insect bite appointment online or simply pop in. We also welcome patients from New Ferry, Bromborough, Birkenhead, Wallasey and Heswall.
Frequently Asked Questions
Most mild infections improve within a few days of treatment. If you’re given antibiotics, finish the full course even if the bite looks better.
Mild irritation often settles with good hygiene, but a true infection may need antibiotics. If it’s getting worse after 48 hours, get it checked.
Not usually. A pharmacist can assess most infected bites under Pharmacy First and will refer you if you need further care.
Yes. Itching alone isn’t a sign of infection, but increasing pain, warmth or pus may be.