Your veterinarian will give your pet a complete examination to determine any conditions that might be contributing to the problem. Careful examination of the skin can often reveal signs of infection, mites, insect bites, or other issues. Sometimes, itchy skin and recurring ear infections occur together as a result of allergic reactions. In these cases, your veterinarian will also treat the underlying allergy that is causing the problems. Allergy tests or tissue samples may be necessary to determine the cause of your pet's symptoms.