 [ Symptoms ] what is the likelihood that a 4 year old child allergic to cats will also be allergic to dogs  does it matter whether the catsdogs are male or female are some breeds of dog more allergenic than others if the symptom includes a puffy face which is not usual for her cat reactions could this be due to exposure to a dog or other allergenic [ Disease ] cats and dogs are different species but many higher allergic children are allergic to many animal danders to be sure just ask the medical provider for a blood test for cat dander as well longer haired dogs have more dander than the bald ones and there are some breeds that shed very little and are tauted as hypo allergenic dogs but i am skeptical the sex of the dog should not make a difference i never met a child that was only allergic to male dogs and not females etc w when an allergic person reacts and starts showing signs of allergy itching hives sneezing wheezing swelling etc  we often blame the last thing they did something they ate touched inhaled or encountered but that is only circumstantial a child with allergies typically is allergic to many things including some things that were not even tested if you are being pressured to get a pet a dog or a cat it is best to be tested first before you acquire and animal and become attached to it