Red spots on the skin are common and often clear on their own. The cause may be irritation, an allergy to a new cosmetic or detergent, eczema, an insect bite, heat rash or an infection. That is why watching the change matters more than applying new products straight away. This is general information, not a diagnosis.
What you can do at home
- Think about what is new: cosmetics, perfume, detergent, jewellery or a medicine. Stop using the new product.
- Rinse the skin with lukewarm water and pat it dry gently, without rubbing.
- For itching, apply a cool, damp compress for a few minutes.
- Wear loose cotton clothing and do not scratch the spots.
- Photograph the spot each day in the same light to see whether it spreads.
- Do not apply new creams, oils or herbal remedies until you know the cause, because they may worsen the reaction.
When to see a doctor
MedlinePlus advises contacting a doctor if the rash is very painful, forms blisters, especially around the eyes, mouth or genitals, if you have a fever, if you see signs of infection such as pus, warmth or red streaks, if itching is constant, or if the rash does not settle after a week. Also get in touch if the rash appeared after starting a new medicine.
When to get emergency help
If a rash appears suddenly and spreads fast, or your face or lips swell, get urgent medical assessment straight away. A rash or skin swelling on its own is not a sign of anaphylaxis. If the rash comes with difficulty breathing, wheezing, swelling of the throat or tongue, a hoarse voice, dizziness or feeling faint, it may be anaphylaxis: if you have a prescribed adrenaline auto injector, use it straight away according to your personal plan and call your local emergency number at once. Call emergency services even if no auto injector is available.
Sources: MedlinePlus NHS Resuscitation Council UK.
Common questions
Can red spots go away on their own?
Often they can, especially once the trigger is removed. If they last more than a week or get worse, see a doctor.
May I put aloe or a cream on the spots?
Until you know the cause, it is better not to add new products, because they can also cause a reaction. Ask a doctor or pharmacist.
Before first use
Choose products for your dietary routine and care needs. Follow a healthcare professional’s advice for diagnosis and treatment of symptoms. Check suitability first during pregnancy and for use by children.

