#1
Mix one part apple cider vinegar to two parts water. Pour mixture into a spray bottle, and use to saturate the flea bites. Do not use on open sores, as the vinegar will sting.
#2
Boil a cup of water. Place the lemon peel from one lemon in the water. Cover and steep overnight. Pour the mixture into a spray bottle and saturate the bite. You can also dab the mixture onto the bite with a washcloth.
#3
Make a paste with baking powder and water. Cover the flea bite with the paste. It will relieve the pain of the bite and some of the itching.