We use an oatmeal shampoo on Bella and today I noticed white specks in her fur.

I don't know what to do! We got the oatmeal shampoo for Kelli to prevent dry skin but never got a chance to use it on her, I'd hate to think that it's not going to work on Isabella.
This may sound silly, but I know with humans we get dry skin in the winter from being inside with the heat on and everything....could it be the same for dogs/animals?