Do you have problems with a runny nose? Can’t you stop it? Well, let your body fight the infection in full. Most often, the younger members of society with bronchitis tend to have a runny nose. It may prevent from calm sleep and may cause another discomfort. The phlegm is another symptom of the disease. The most dangerous thing to happen is the blockage of the nasal passage. If it occurs when the person is sleeping, he or she can suffocate.