They often contain higher levels of detergents as well as salt for thickening. These can also cause dryness and skin irritations. This is one area where quality does make a difference. Flea collars do little good whereas products such as Frontline and Advantage will work for a month or more with very little effort. Both of these products have an age limit on them so discuss their use with your veterinarian as soon as possible.
Many owners feel that all dogs have fleas so why bother.
Fleas are an external parasite that feeds on the blood of the animal it lives on. With sever cases of flea infestations anemia and even death can occur. They are also the source of tapeworms in dogs so every attempt should be made eradicate their existence on the puppy. Another basic need for all puppies, regardless of breed, is the proper brushes and combs. The sooner you start getting the puppy used to standing and being brushed or combed the better.