Skin irritant when viewing home for sale

[Andree Axinn]

I have an offer in on a house that needs a lot of work. No disclosures available on the property. My arms burn when I am inside home. My realtor said her legs were burning when we were inside. Place has an odor and carpet in bedrooms looked like it had been changed fairly recently but it doesn’t have “new carpet smell”. Termite damage, roof leaks, slight moldy smell. Does anyone have thoughts on why my skin would have this burning sensation. No bite marks evident. When I washed my arms and took an allergy pill, all was good. I thought about off-gassing of carpet, possibly fleas but I didn’t have bite marks. Any thoughts would be appreciated. This house will be my 3rd fixer-upper, so I’m still fairly new to this game.