Sneezing is also a form of detoxification. If the nasal cavity is infected with bacteria or viruses, an inflammatory reaction can easily occur, so the bacteria or viruses can be expelled from the body through sneezing. Also if there is a foreign body in the nasal cavity, the foreign body that enters the nasal cavity can also be expelled from the body through this physiological reaction of sneezing, so generally in the case of a cold there will be nasal congestion, sneezing, runny nose and other symptoms, so for sneezing is also a normal defense reaction. And when sneezing, it can also prevent bacteria or virus from entering into the nasal cavity again. You can use some antiviral drugs appropriately for treating cold, and at the same time, do not suppress sneezing excessively.