A yellow nose with a cold does not mean that you are almost well, but that you have a bacterial infection. Bacterial infection in the nasal cavity causes purulent secretions, so you should actively use anti-cold medication and antibiotic medication when yellow nose appears, and pay attention to drink more water. Yellow nasal discharge is more frequent and frequent blowing of the nose can cause nasal fire, so you must drink more water and eat more vegetables, and you can also use appropriate anti-fire medication. During the treatment period, take more rest, avoid excessive exertion, especially not to stay up late, and eat less spicy, greasy and stimulating food. After recovering from the cold, you should strengthen physical exercise to enhance your physical fitness.