I took my dog to a groomer to get his nails cut. I asked her do I have to get a spray to brush him so his coat doesnt break she told me no. And that she never uses spray on her own dogs just the regular doggie shampoo thats she uses. Is this correct? I thaught of all people a groomer would tell me to get something from her shop at least to make a buck. I never use anything on my Shitzu/bishon and I brush him daily. How would I know if I was damaging his coat? He is a pretty good length right now and has not a single matt.