If your dog has allergies or seems to be itchy. You can try this allergy rinse. I use this allergy rinse on my dog Bandit after baths. Not only does it smell wonderful, it soothes his skin and helps with allergies.
Allergy Rinse Recipe:
2 Tablespoons chopped fresh lavender
2 Tablespoons chopped chamomile flowers and leaves
2 Tablespoons of chopped calendula flower petals
8 cups of water
Place all the ingredients in a stainless steal pot or glass pot. Pour in 8 cups of water and bring to a boil. Reduce the heat to low and let it simmer for 15 minutes. Remove from the heat and let is cool for 45 minutes. Strain the mixture and store in a clean mason jar in the refrigerator.
Use as a rinse after bathing and spray on the dogs coat if needed.
I grow my own chamomile flowers and lavender, but I am sure you can get them at your local garden nursery (even if you wanted a small plant to chop up right away). Maybe at a farmers market or some health food stores. You can get calendula flower petals at: http://www.wildroots.com/calendula-flower-petals-whole-16-oz-p-2301.html