It is very sad to see pet lovers to be allergic to dogs or cats. There is not enough proof of any natural cure to cat allergy. You can do the prick tests to find out what exactly you are allergic to and pay attention to the respective problem. Eucalyptus has been used to get relief from colds and cough. A few herbs like lobelia, fenugreek, cayenne, rosehips and astragalus may be used. You can have multivitamins to boost your immune system. Apple cider is supposed to help in treating allergies caused by pets. You can also consult a doctor of alternative medicine to help you.