|My 1 1/2 yr old played in a yard and now has a very itchy rash on his bottom..Luckily most of the time the diaper keeps him from scratching. I carried him bare bottomed after a bath on my fore arm and now I have a rash on my fore arm. It spread to my other arm and upper arm...now I am wondering if this is PI or something else....because I wouldn't catch PI just from touching someone else' PI? esp after a couple baths right???