Common Rashes in Children
Common Rashes in Children
Specialist assessment for childhood skin conditions in Essex
If your child has developed a rash and you are not sure what it is, or whether it is serious, we can help.
Our GPs include Dr Laura Campbell, who holds a Postgraduate Diploma in Practical Dermatology. We will give your child a clear diagnosis, prescription treatment when needed, and advice about attending school or nursery.
Common Childhood Rashes
A very common viral illness beginning with mild fever followed by an itchy rash of spots that progress from flat red marks to fluid-filled blisters to crusted scabs. New crops appear over four to five days, often with all three stages visible at once. Children must be excluded until all blisters have fully crusted, typically five to seven days after the rash appears.
Treatment is supportive: calamine lotion, antihistamines for itch, and paracetamol for fever. Avoid ibuprofen in chickenpox as it can increase the risk of skin complications. Seek prompt advice if you have a newborn at home or are pregnant.
Caused by coxsackie virus. Begins with fever and sore throat, followed by painful mouth ulcers and small blisters on the palms, soles, and sometimes the buttocks. Most common in nursery-age children.
No specific treatment is needed. Keep your child hydrated with cool fluids and soft foods. Current guidance does not require exclusion from nursery once a child is well enough to attend, though individual settings vary. We can provide a confirmation letter if needed.
Begins with mild illness and a bright red rash on both cheeks, followed by a lacy, net-like rash on the arms and trunk that can come and go for several weeks. By the time the rash appears, children are usually no longer contagious and can attend school.
If your child is diagnosed and you are pregnant or have been in contact with someone who is, seek advice from your GP or midwife promptly. Parvovirus B19 in early pregnancy carries a small risk of complications.
Most common in children under two. Causes three to five days of high fever with no obvious source, followed by a sudden drop in temperature and a blotchy pink rash on the trunk spreading to the neck and arms. The child usually improves noticeably as the rash appears. No specific treatment is needed.
The high fever can trigger febrile convulsions in some children. Roseola is a common explanation for a young child with a high fever and no other obvious cause.
Caused by Group A Streptococcus. Begins with sudden sore throat, high fever, and headache, followed by a sandpaper-textured rash spreading from the chest across the body. The tongue may develop a strawberry appearance. Scarlet fever is a notifiable disease and requires a 10-day course of antibiotics.
Seek assessment the same day rather than waiting. Children should be excluded for at least 24 hours after starting antibiotics and until they are well. Untreated scarlet fever can lead to serious long-term complications.
A self-limiting rash beginning with a single larger oval patch (the herald patch) on the trunk, sometimes mistaken for ringworm. One to two weeks later, smaller oval patches spread in a Christmas tree pattern along the lines of the ribs. Mildly itchy. More common in older children and teenagers.
No treatment is required. The rash resolves on its own within six to twelve weeks. Assessment is worthwhile to confirm the diagnosis, as pityriasis rosea can mimic other conditions.
A skin infection caused by staphylococcus, which produces clusters of blisters or sores, most often around the nose and mouth, which burst and leave honey-coloured crusting. Highly contagious. Children must be excluded until sores have fully crusted or 48 hours of antibiotic treatment have been completed.
We can assess, prescribe, and provide a return-to-setting letter at your appointment.
A very common viral infection causing small, pearly, dome-shaped spots with a central dimple. Frequently mistaken for warts or chickenpox. Benign and self-limiting, usually resolving within 12 to 18 months without treatment. No exclusion from school or nursery is required.
We can confirm the diagnosis and provide realistic expectations about the timeline.
Red, sore, inflamed skin in the nappy area caused by prolonged contact with moisture. Most cases resolve with frequent nappy changes, barrier cream, and nappy-free time. If the rash persists and involves satellite spots beyond the main area or a bright red border in the skin creases, a secondary Candida (thrush) infection is likely and requires antifungal treatment.
Raised, intensely itchy welts appearing suddenly and spreading rapidly. Alarming in appearance but individual weals usually resolve within 24 hours. Often triggered by viral illness, and a specific cause is not found in many cases. If urticaria occurs alongside facial swelling or any difficulty breathing, call 999 immediately as this may indicate anaphylaxis.
Small red spots or blisters in areas where sweat becomes trapped, most commonly the neck, armpits, and nappy area. Caused by overdressing or warm weather. Resolves within a few days with cooling and looser clothing. No treatment required.
A fungal infection producing ring-shaped, scaly patches with a clearing in the centre. Scalp ringworm requires oral antifungal treatment as topical creams are not effective for scalp infections. It can cause patchy hair loss and is often mistaken for eczema or dandruff. If your child has a scaly scalp patch with hair loss, proper assessment is worthwhile before trying over-the-counter products that will not work.
One of the most common skin conditions in children. Causes dry, itchy, inflamed patches typically affecting the face in babies and the elbow and knee creases in older children. A chronic condition requiring ongoing management rather than a one-off treatment. Read more about eczema.
Not a rash in the traditional sense, but frequently seen and often undertreated. If your teenager has persistent acne not responding to pharmacy products, or acne causing scarring or psychological distress, specialist assessment is worthwhile. Read more about acne.
Frequently Asked Questions
Yes, if the rash is persistent, spreading, or unidentified. Many rashes in otherwise well children have a treatable cause, and you may need written confirmation of the diagnosis before your child can return to nursery or school.
In most cases, yes. Dermoscopy combined with a thorough history gives considerable diagnostic clarity for the majority of childhood rashes. Where further tests or specialist input are needed, we will tell you clearly and arrange the next steps.
No specific treatment is needed. Keep your child hydrated with cool fluids and soft foods. Current guidance does not require exclusion from nursery once a child is well enough to attend, though individual settings vary. We can provide a confirmation letter if needed.
Yes. Once we have examined your child and reached a diagnosis, we can provide written confirmation including guidance on exclusion and return to the setting.
If your child is diagnosed and you are pregnant or have been in contact with someone who is, seek advice from your GP or midwife promptly. Parvovirus B19 in early pregnancy carries a small risk of complications.
It requires prompt antibiotic treatment and is a notifiable disease. Seek assessment the same day rather than waiting. Once antibiotics have been started and your child has been well for 24 hours, they can return to nursery or school.
The high fever can trigger febrile convulsions in some children. Roseola is a common explanation for a young child with a high fever and no other obvious cause.
Yes, through direct skin contact and shared towels. However, children do not need to be excluded from school or nursery, and the spots resolve without treatment over 12 to 18 months.
Once all blisters have fully crusted over, typically five to seven days after the rash first appears.
Yes. We see children of all ages. Many of the most common rashes, including eczema, heat rash, nappy rash, and viral infections, occur in infancy, and parents of young babies often find same-day NHS access particularly difficult.
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We can confirm the diagnosis and provide realistic expectations about the timeline.
