Skin Rash in Children

Relevant specialty: Pediatrics (Paediatrician)

Skin rashes are part of childhood and often look more dramatic than they actually are. Many rashes occur as part of harmless viral infections and disappear on their own. It is helpful to pay attention to the appearance, distribution, and general condition of your child. If you are unsure or if your child is visibly unwell, it is worth having a doctor take a look.

Possible causes

01

Viral childhood illnesses

Many typical childhood infections are accompanied by rashes, often together with fever. They usually heal on their own.

02

Eczema or dry skin

Sensitive children's skin tends toward redness and itchy patches, especially in the skin folds. Dryness and friction worsen the symptoms.

03

Allergic or contact reactions

Certain foods, care products, or plants can trigger hives or redness. They usually resolve after removing the trigger.

Children's Health

Typical steps at the doctor's office

  1. 1The pediatrician examines the rash in good light, checks with the glass test whether it fades under pressure, and asks about fever, contact with people who are ill, new foods, or care products.
  2. 2The cause can usually be identified from the appearance, distribution, and course without further tests; if needed, a swab or blood test may be added.
  3. 3Many rashes only require skin care and patience; itchy forms are soothed, and infections are treated specifically if needed.

What you can do yourself

  • Do the glass test: press a clear drinking glass against the spots. If they fade under the glass, that is reassuring; if they remain visible, call 144 immediately. Dress your child in soft, breathable cotton and avoid scratchy fabrics.
  • Care for dry skin with a mild, unscented cream and keep fingernails short to reduce scratching.
  • Temporarily avoid new care products or potential triggers.
  • Ensure a cool room temperature, as heat often intensifies itching.
When a doctor's visit makes sense

A rash that does not fade under pressure, together with fever and a severe feeling of being unwell, requires immediate emergency care (144). Have a rash assessed on the same day if it is accompanied by high fever or a marked feeling of being unwell. For infants and small children, as well as whenever there is uncertainty about the cause, an early consultation with the paediatric practice is always the safe course of action.

Children's Health

Frequently asked questions

Is the rash contagious?
That depends on the cause. Many virus-related rashes are contagious, while eczema or allergic reactions are not. Your pediatrician can assess this.
May my child go to daycare with a rash?
As long as the cause is unclear or fever is present, it makes sense to keep your child at home. Your pediatrician's office can tell you when it is safe to return.
Should I apply cream to the rash?
A mild, unscented moisturizer for dry skin is usually helpful. It is better to avoid special ointments without medical consultation as long as the cause has not been determined.
Next step

Not sure whether you should go or whom to see? Describe your symptoms — we'll find the right practice in your area.

Describe symptoms →

Editorial content · as of 9/5/2026

Based on recognised Swiss specialist sources — including the FOPH and the Federal Commission for Vaccination Issues, medical societies and university hospitals.