Dogs can get dandruff just the same as their human owners.  It can simply occur when skin cells form naturally, die and flake off more quickly than normal.  It can also indicate the presence of a serious health problem such as parasites, allergies, or skin infections.  It is important that your pet is brushed and combed at least once per week, however, daily is even better.  Not only does your pet benefit from the contact with its master, but the owner will notice any unusual changes in the skin and coat condition more readily.
     To begin with, do not use shampoos made for human beings on your pet, especially not the baby shampoos nor the medicated shampoos.  A dog's skin has different ph level than human skin - we humans require more acid formulas; the dog's, more alkaline - so the chemicals in "people" shampoo can actually harm your pet's skin.
     There are dry skin and seborrhea shampoos especially for dogs.  These shampoos contain sulfur or salicylic acid.
     Be sure to follow the directions on the label.
 
     Another important point to remember, is to rinse your dog thoroughly after shampooing.  The shampoo residue will also cause your dog to itch and scratch.

     If, despite your best efforts, your dog seems to be itching, scratching, whimpering, or in distress, please get your pet to the veterinarian.  They are telling you the best way they can, that there is a problem and they need your help.