Dog itchy skin can be such an aggravating problem, especially when you don't have the slightest idea as to what is causing all the itching.
Some causes of excessive scratching have tell-tale signs.
For example, mange is characterized by loss of patches of hair, crusty skin, and sometimes intense itching.
If you see fleas or flea dirt on your dog or in your home, a flea bite allergy may be the cause of your pup's constant itching and scratching.
But what if you don't see anything out of the ordinary? And your dog continues to itch and scratch.
Your baby may have an allergy (pollen, food, etc), or may just be reacting to a certain contaminant.
A very common culprit of dog itchy skin is your shampoo and bathing techniques.
Follow the bathing tips listed below to help with all that itching:

• Do not use human shampoo on your dog.
  Canine skin is much more sensitive than human skin, with much fewer layers and a completely different pH level.
  Our human shampoos are way too strong to use on a dog.
  Always use a shampoo formulated for your type of dog.
  
• If you bathe your pooch frequently (weekly) or notice very dry skin, try using a conditioner after shampooing.
  The conditioner helps to seal the coat and keep moisture in the skin.
  If bathing your dog is a major chore and the thought of adding another step makes you want to scream, try a combination dog shampoo/conditioner.
  
• Always make sure to thoroughly rinse all shampoo off of your pet.
  If your dog does not like baths, this can be a very difficult part of the process, but it is essential! Shampoo residue will result in dog itchy skin.
  
• Only use lukewarm to cool water to bathe your dog; hot water irritates your dog's skin.
  
• After bathing your dog, pat dry, don't rub, with a towel.
  Rubbing will also irritate the skin.
  
• If you must use a hair dryer on your dog, use the low, or no, heat setting.
  Hot air will only further irritate your dog's itchy skin.
  

If you are bathing your dog to help relieve itchy skin, use a shampoo that contains colloidal oatmeal.
Colloidal oatmeal is used for both humans and canines because of its abilities to retain moisture in the skin as well as for its anti-inflammatory and anti-itching properties.
Try to let the it stay on your dog's skin for 5 - 10 minutes before thoroughly rinsing.
And remember to always use only lukewarm water - warm/hot water hurts the already irritated skin.