You know those printed labels on clothes these days? The kind that are right on the back inside of the t-shirt rather than on a label?
Apparently, some of these labels are printed with less-than desirable inks and in some cases are causing bad skin reactions.
Zrecommends has been covering the story and doing a great job of trying to get information from the companies producing the garments. The biggest concern seems to be around a certain batch of baby/children's clothes from Carter's.
Take a look at the full story. I think if you do not see a rash or burn on your child you should be fine. It doesn't seem practical to me at this point to insist on only clothes with old-fashioned labels. However, if you do notice symptoms as they describe, definitely contact the manufacturer and stop wearing the garment.