this happened to me when i decided to try out the unscented version of tom's of maine. i had always used their products before with no problem, but wow. major redness and itching after just one day of using the unscented version. definitely let the rash heal before you apply any other products. you don't want to risk irritating the area even more. my rash went away after a week, but if yours doesn't go away (or gets worse), see a doctor.