Could a person be allergic from perfumes as when I smell any perfume I feel as I am going to be fainted?

Not inhaled. Perfume may cause a contact skin allergy but not by inhalation. Since perfume contains volatile organic compounds including alcohol, it may irritate people nose or rarely the lungs. Just wonder if your problem from the perfume is due to association with a previously bad experience or remotely a seizure disorder triggered by the odor.