Skin Rash

Relevant specialty: Dermatology · General Internal Medicine (GP)

A rash can have many causes — from allergies to eczema to infections. What matters is how quickly it develops and whether general symptoms occur as well.

Possible causes

01

Contact or allergic reaction

After contact with triggers, often itchy and red.

02

Eczema

Dry, inflamed, itchy patches of skin, sometimes chronic.

03

Infection

Viral or bacterial, sometimes with fever.

Skin, Hair & Nails

Typical steps at the doctor's office

  1. 1The dermatologist assesses appearance, distribution and progression and asks about possible triggers.
  2. 2In unclear cases, allergy tests or a tissue sample may help.
  3. 3Treatment depends on the cause — avoiding triggers, skin-care or anti-inflammatory measures as directed by your doctor.
Skin, Hair & Nails
Next step

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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.