What causes dog flea allergies?
You may have two animals in the same environment and only one will be scratching and chewing an area. The main cause of dog flea allergies is the saliva of fleas which irritates the dog’s skin. Some dogs are more sensitive to this irritant than others. Fleas suck the blood out of the host to feed just like mosquitoes do. Long after fleas feed, they continue to bite the host animal. Sensitivity to the saliva is built up over time and the animal develops dog flea allergies and will be in distress until something is done. Fleas continue eating to produce droppings for their hatchlings for the flea’s life cycle to continue. These droppings contain dried blood which is a high protein source for the immature fleas. It is through this life cycle that the fleas irritate the skin causing the itching. Some dogs are almost immune to fleas; while others have sensitivity to the saliva of the fleas, and their constant biting. Thus an animal develops dog flea allergies that can cause discomfort to th
