When a person is suffering from severe cold, he or she cannot

Receptors in our body located in sense organs such as ear, nose, eye, etc. These receptors collect information from the external environment and sent these information to the brain where information is interpreted and instructions are sent to organ which revel responses. During cold, mucus membrane of our nose become thick that blocks the passage from where odor of perfume reaches the olfactory receptors. Thus, our brain does not receive any message to identify smell of a perfume.