This is a test of commonsense. Complete the next sentence:

How to treat flea bites on dogs 
Look for small red dots, flea dirt, and flea eggs on your dog's skin. 
One of the most conspicuous signs of fleas are what they leave on your dog. Take a close look at your dog's skin to see if they have any small, red, raised bite marks.
Additionally, fleas often leave behind " flea dirt, " which will look like small, dark grains of sand, as well as small white eggs that resemble tiny grains of rice. If your dog has an allergic reaction to the bite, the red area may be larger.