evidence: There is no evidence to suggest that gargling salt water or vinegar, or partaking in many other home remedies, fight SARS-CoV-2 infection. Upon entering the body, the virus attaches to and enters cells in the airway where it takes over the cells’ machinery, producing more viral particles that spread to other cells. Because the virus hides out in the body’s own cells, it can not be targeted without also killing healthy, uninfected cells. Therefore, fighting viral infections relies on the body’s immune response.