Parosmia is a condition that affects the sense of smell, causing familiar odors to be perceived differently, often in an unpleasant way. People with parosmia may find that foods or scents they once enjoyed now smell rotten, burnt, or otherwise distorted. This condition can arise from various causes, including viral infections, head injuries, or neurological disorders. The experience of parosmia can significantly impact a person's quality of life, as it may lead to changes in appetite and food preferences. Treatment options are limited, but addressing underlying causes, such as COVID-19 recovery or sinus issues, may help improve the sense of smell over time.