1. You can see the fleas or see little black pepper type particles in his hair.
2. He can be allergic to flea bite. For example if you got bitten my an ant or a mosquito you can itches from the bites for week without the ant or mosquito having to be right there.
3. You will see flakes of dry skin.
4. In really bad cases he can scratch himself raw which you will have to take him to the vet. Or you can take him in for a cortisone shot just to relieve the itching. |