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red rash on lower legs

When doing hiking in hot weather, a blotchy rash appears on both lower legs - in the isside part, not all of it.The red rash  stays for several days. Creams won´t help, so I think it´s circulatory . When I use stocks of short pipe the prloblem usually does not appear.
Thanks
Katia
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Avatar universal
A related discussion, what could it be? was started.
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And there is no cure?
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Avatar universal
Hi there.

This phenomenon can really be due to dilated vessels in the skin that is a response of the vascular walls to increased temperatures.  This would usually disappear quickly, but can be prolonged especially if the exposure time to the hot temperature is likewise prolonged.  Other conditions to think of would include small insect bites or stings that may be residing in the water.  This might really take a week to heal completely.
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