what causes hot spots on dog
A common cause of irritation that allows hot spots on dogs to develop is an allergy to flea bites. Other examples include: 1  Insect bites or stings. 2  Allergies (e.g. canine atopic dermatitis or food allergies). 3  Matted Coat. 4  Minor Injuries such as cuts and grazes. 5  Under-grooming or excessive grooming.