My legs get irritated and a rash developes on my legs.?

I'm off on sunday and monday and when I get back to work, I develope a rash on my legs? I work for a hotel, so I have to walk the floors at night and when I do I get a rash on my legs? When I'm walking it feels fine, then when I'm done walking the hotel floors I notice a rash on my legs. It's weired, It only lasts a day or so and it goes away towards the end of the week. I never get a rash on my legs outside of work when I'm walking around, it's only when I go back to work that first day... WTF?? Is it something in the carpets at work, some kind of chemical that gets on my legs or what? Cause I have to walk the hotel and it's a 12 story hotel, I don't understand it. Ever since I have worked here, this has happened. Can someone please for the love of god, help me..
Answer:
I have a similar difficulty and found answers at this site:
http://walking.about.com/od/medhot/a/leg...

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You need to see a doctor if the rash is tiny red dots under the skin. Your veins may be getting inflamed. It is from walking too much or standing too much. Also if above is right you need to wear very good shoes like sas or nurses shoes. The days you think this will happen take breaks and lie flat with your feet above your heart. It may hurt but it will help. Also when the rash appear sleep this way. My mother has this condition.

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