Good Evening, My four year old was playing in the backyard this past Friday and accidentally got caught with the dogs cable runner. It made a two inch scratch on the back of his neck. On Sunday and Monday he has been helping out with planting. He did touch red mulch, soil and grass seeds. Then all of a sudden on Monday he woke up with a itchy rash on that same area (back of neck). The rash is small dots raised and as of today it is less red and less itchy. I have been applying Aveeno anti itch cream with hydrocortisone. What could this be from?