D-limonene is a great natural flea killer that is used in many all-natural flea shampoos. You can easily extract it from a lemon to make a tonic for your pet’s flea problems or mange. It is so mild that it can be used daily, if the problem is severe.
• Lemon
• Water
01. Thinly slice a whole lemon, including the peel.
02. Add the lemon to 1 pint boiling water.
03. Let steep overnight.
04. The next day, sponge the solution onto your dog’s coat. You may also strain out the lemon pieces and decant the liquid into a spray bottle for frequent application.