I got my Shihtzu at 9 weeks and bathed her the next day, I bouth Puppy Shampoo at Petsmart and she's never had a problem. She is now 11 mos. I have read that they can be bathed once a week, I bathe her every 2 weeks, and I take her to the groomer about once a month. I brush her every other day, they can get matted very easily, I've learned. I also feed her a holistic food, Blue Buffalo, and she does not scratch, her coat is shinny and although she doesn't "love" the bath part, I notice she is very happy afterwards.. and is now used to the blow dryer, good luck!