How to Treat Heat Rash – First Aid Training – St John Ambulance

How to Treat Heat Rash – First Aid Training – St John Ambulance


Heat rash, or prickly heat, is an itchy rash of small red spots that can cause a stinging or prickly feeling on
the skin. The rash can be anywhere on the body, but usually people get it on their face, chest, back and thighs. It is caused by sweat glands becoming blocked so people usually get the rash if
they’re sweating more than usual. Heat rash isn’t serious. It will usually go away after a few days so it doesn’t normally need medical attention. There are four signs of heat rash to look for: itching, a rash of tiny red spots, mild swelling, and a prickling or burning
feeling. If someone has heat rash, you should
explain that the rash is not serious but give them tips on how to soothe the itching and avoid getting the heat rash in the future. You can suggest they take a cold bath or
shower to cool the skin and help prevent further sweating. They can also buy calamine lotion or hydrocortisone cream which will help to soothe the itching. Recommend that they wear loose clothing made of cotton as cotton doesn’t trap heat as much a synthetic fibres like nylon and polyester. Tell them to drink plenty of water to stop
them getting dehydrated and suggest they avoid excessive heat or humidity by staying out of the sun and not sitting
too close to a fire or heater. So remember: when treating heat rash suggest a cold bath or shower, use calamine lotion, suggest loose clothing and drink plenty
of water. And that’s how you treat heat rash.

4 thoughts on “How to Treat Heat Rash – First Aid Training – St John Ambulance”

  1. Since April 209, I get the rash twice or 3 thrice every day it disappear after one hour…What can I do to stop it for good…to get rid of it once and for all?

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