In reading about allergies associated with a new carpet installation, such as a skin rash, it's not clear exactly what the mode of exposure is. Is it from breathing in the chemicals that are outgassing, contact of the skin with the air laden with such chemicals, or physical contact with the carpet? Or can it be any of the above?
I've been asked to provide information on what I have read on this subject. So for instance slide 3 of the WebMD article is typical of what I've read (Is your house making you sick?) and simply says "The chemicals used to make and install some carpeting could be bad for you, too" but does not address the questions I raise above in regard to skin rash. A Mayo Clinic article (Latex Allergy) does states that it could occur by direct contact or inhalation, but I haven't found something like that for carpet chemicals as they relate to skin rash.