Bramble gets scruffy bits, mostly down his back where he can't groom very well - I usually put Tea Tree Oil on them and mostly they go away ...
Skin things are difficult though - my Cockers love to swim in lakes and rivers and sometimes I wonder if there aren't chemicals that irritate their skin in there. Where they play there are ducks, swans and fish all quite happy, so you would think that the water was ok ....
Perhaps it's just his 'tidemarks' - maybe I should bath him more often and give him the all-over massage with his doggy soap that I got from a lady that makes her own ... I have been tempted to use it myself, only I went to Oxford today and called in at the Lush Shop - talk about total sensory overload ....
Most of the things I shall just put in a bowl in my bedroom and sniff up every day, but they have such delicious soap, shampoo, conditioner, cleansers, bath-bombs and anything else you could think of to pamper youself with .... yummmm !