This page summarises publicly available NHS information for educational purposes only. It is not medical advice or a diagnosis. Always consult a qualified healthcare professional.
What is skin rash?
Rashes can be caused by many things including allergies, infections, heat, and skin conditions like eczema or psoriasis. Most rashes are not serious and clear up on their own or with pharmacy treatment.
When NHS resources suggest seeing a GP
- A rash does not improve after a few weeks
- The rash is painful or blistered
- The rash is spreading quickly
- You have a rash with a fever
Self-care information from NHS
- Keep the area clean and dry
- Use an emollient (moisturiser) to soothe dry skin
- Avoid scratching
- Try antihistamine tablets for itching
Common questions
When is a rash an emergency?
Seek urgent help if a rash does not fade when a glass is pressed against it (possible meningitis), if it appears with difficulty breathing or swelling (allergic reaction), or if it blisters severely.
What does an allergic rash look like?
Allergic rashes (hives/urticaria) typically appear as raised, itchy red or skin-coloured bumps. They can appear anywhere and often come and go.
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This page is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about your individual situation. NorMed organises publicly available NHS information and is not affiliated with the NHS.