Call emergency services now if your child has trouble breathing, swelling of the lips, tongue or throat, trouble swallowing, collapses, or becomes unusually limp or hard to wake. Contact a clinician promptly if bites become increasingly red, hot, painful, swollen, or start leaking pus, or if symptoms worsen. Babies under 1 year should be assessed by a healthcare professional. Most uncomplicated bites can be cared for at home.
When should you seek emergency help?
Serious allergic reactions to bed bug bites are rare, but they can occur. Seek emergency medical help immediately if your child develops signs of a potentially life-threatening allergic reaction. Do not wait to see whether the symptoms improve on their own.
- Difficulty breathing, wheezing, or struggling to catch their breath.
- Sudden swelling of the lips, tongue, mouth, or throat.
- A tight feeling in the throat or difficulty swallowing.
- Fainting, collapse, or sudden severe dizziness.
- Unusual limpness, marked confusion, or difficulty waking your child.
- Widespread hives accompanied by breathing problems, faintness, or other signs of a body-wide reaction.
According to MedlinePlus, serious allergic reactions to insect bites can affect breathing, swallowing, and circulation. If your child has a prescribed epinephrine auto-injector and their allergy action plan instructs you to use it, follow that plan while emergency help is on the way.
When should you call your child's doctor?
Contact your child's pediatrician or another healthcare professional promptly if the bites look increasingly inflamed, the itching is difficult to control, or your child seems unwell. A clinician can examine the skin and consider the child's age, symptoms, medical history, and how the affected areas have changed over time.
Signs of a possible skin infection
Repeated scratching can damage the skin and allow germs to enter. Contact your child's clinician the same day if the affected area develops concerning changes, especially if several occur together.
- Redness that is spreading or becoming more noticeable.
- Increasing warmth, tenderness, pain, or swelling around the bites.
- Pus or other fluid draining from the skin.
- Fever or a child who appears increasingly unwell.
- Skin symptoms that continue to worsen instead of gradually improving.
The NHS guidance on insect bites and stings identifies increasing redness, warmth, pain, swelling, and discharge as reasons to seek advice about a possible infection. If symptoms are progressing quickly or your child is becoming significantly unwell, seek urgent medical assessment rather than waiting for a routine appointment.
When itching or swelling needs medical attention
Arrange a medical assessment if your child has intense itching, large or painful areas of swelling, blisters, widespread hives, or a skin reaction that interferes with sleep or everyday activities. Also contact the doctor if symptoms are not improving, keep returning, or are difficult to explain. Seek emergency help if swelling or hives occur with breathing problems, throat symptoms, collapse, or other signs of a serious allergic reaction.
Does a child with bed bug bites always need a doctor?
No. Many bed bug bites cause itchy, raised spots that settle without medical treatment. The Centers for Disease Control and Prevention (CDC) states that bed bugs are not known to spread diseases to people, although intense itching and scratching may contribute to skin irritation and secondary infection.
However, a rash that resembles bed bug bites does not confirm what caused it. According to Mayo Clinic, bed bug bites can look similar to other insect bites and skin rashes. If you are unsure of the cause, the rash looks unusual, or the skin changes are persistent or worsening, arrange a clinical assessment rather than relying on the appearance alone.
Does your child's age change when you should call?
Yes. Babies younger than 1 year should be assessed by a healthcare professional after an insect bite, according to NHS guidance. If an infant develops suspected bed bug bites, contact their pediatrician for advice, even when the visible skin changes appear limited. Seek emergency help for any warning signs of a serious allergic reaction, regardless of age.
For older children, the decision to seek care depends mainly on their symptoms, how the skin is changing, and whether the itching or swelling is affecting normal activities. A child who cannot describe their symptoms clearly may need closer observation and earlier professional advice if their behavior, feeding, sleep, or general condition changes.
What can you do while watching the bites at home?
If your child is otherwise well and the skin changes are limited, simple care may help while you monitor for warning signs. Wash the affected areas gently with soap and water, then apply a clean, cool, damp cloth to ease itching or discomfort. Keep your child's fingernails short and encourage them not to scratch the bumps.
The CDC's clinical guidance on caring for bed bug bites recommends basic symptom care and good hygiene to help prevent secondary infection. If you are considering an oral antihistamine, hydrocortisone cream, or another medicine, check with a pediatrician or pharmacist about whether it is appropriate for your child's age and the correct way to use it. Do not put insecticide or bed bug spray on your child's skin.
Observe the skin over the following days. Bed bug bites commonly settle within about one to two weeks, although the timing can vary. Arrange a medical review if they are not gradually improving, new concerning symptoms appear, or the itching continues to disturb sleep. You do not need to wait for that period to end if the condition is getting worse.
What information should you give the doctor?
When calling your child's healthcare professional, explain when you first noticed the spots, where they are located, and whether redness, swelling, itching, or pain has changed. Mention any fever, fluid from the skin, widespread rash, breathing symptoms, or unusual behavior. Tell the clinician about medicines already given and any known allergies.
If you suspect bed bugs at home, you can also mention whether you have noticed insects or other signs around the bed. The skin's appearance alone may not establish the cause, so the clinician may consider the timing, examination findings, and other possible explanations before recommending treatment.