How can I prevent heat rash?
Heat rash, or prickly heat, is best prevented by staying in a cool environment and wearing clothes that are not obstructive. Do not stay in one position, for example on your back, for too long. Plastic coverings on mattresses should also be avoided, since they create blockages to the sweat glands. Heat rash is fairly common in hospital patients who spend a lot of time on plastic-coated mattresses at temperatures above what may be necessary. Children also get heat rash without necessarily having those factors at play. The sweat glands of children may be easily blocked, and just enough heat with enough sweating may be enough to cause heat rash.
Dr. Lowell Goldsmith and Dr. Jeff Bernhard contributed their expertise on behalf of VisualDx for the above information.