Home remedies for dog fleas are available at virtually any supermarket or large retailer. Home cures include citrus fruits, shampoo, rose geranium oil and apple cider vinegar along with regular brushing and baths.
Since fleas are repelled by citrus, try applying a freshly squeezed orange or lemon to the dog's fur. A single teaspoon of apple cider vinegar to 1 quart drinking water helps deter fleas while also keeping the skin and coat healthy. Rose geranium oil applied to the collar is a natural flea repellent.
Because fleas cannot grasp the shaft of pet hair, a generous bath drowns most fleas, explains PetMD. A bath with a gentle shampoo, or dish liquid with a citrus base, followed by regular brushing effectively rid canines of fleas.