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What is prickly heat?
Prickly heat is an allergic reaction to hot temperatures which is often triggered by prolonged exposure to the sun and heat. The main symptom is often referred to as heat rash; an itchy rash formed of small, raised red spots that cause a prickling sensation on the skin.
Prickly heat is caused by hot or humid weather, as it develops when a person sweats more than usual. As the body’s sweat glands become blocked, trapped sweat causes skin irritation and stinging along with a heat rash. It can develop anywhere on the body but is more often found on the neck, chest and back.
The most common symptoms of heat rash in adults and children are:
- small red bumps
- an itchy, prickly sensation
- redness and mild swelling
What is the best sun cream for prickly heat?
New for 2018, LloydsPharmacy have developed a Sun Allergy Prevention Spray, especially designed for those who experience prickly heat. With an SPF of 30, the new dermatologically tested sunscreen helps to prevent sun allergies and sun blisters.
Solero SPF 30 Sun Allergy Prevention Spray has a high sun protection factor and creates a barrier to the skin so that UVA and UVB radiation is blocked. The spray is easy to apply and is suitable for use by adults and children.
How to prevent prickly heat
As well as keeping sun safe with a sufficient SPF for your skin, there are ways you can avoid prickly heat and enjoy your summer.
- wear loose cotton clothing to keep your skin cool
- drink plenty of fluids
- invest in lightweight bed linen
- take cool baths or showers
You can also naturally calm the prickly heat rash by:
- applying a cold flannel to the rash for no more than 20 minutes
- patting the rash instead of scratching it
- avoiding fragranced products
Although there is no cure for prickly heat, you could speak to your Pharmacist about further treatment options such as:
- calamine lotion
- antihistamine tablets
- hydrocortisone cream (not suitable for your face)
Yes. Sun allergy (Photosensitivity) occurs when skin is hypersensitive to UV radiation emitted by sunlight. Both UVA and UVB can cause sun allergies resulting in skin redness, itching (prickly heat), inflammation, fluid retention and blisters. Photosensitivity can also spread to areas of the skin not exposed to sun light and may take a few days to appear.
Prickly heat rashes last different lengths of time depending on the person and how much sun exposure there has been. If you take precautions to cool down and stay out of the sun, your skin shouldn’t take long to return to normal. If you are concerned it may not be heat rash, especially in babies and children, speak to a medical professional as soon as possible.
Some people find antihistamines can help with prickly heat; however some options are not always suitable for everyone. Speak to your Pharmacist about which antihistamine tablets might be right for you.