What are Causes of a Runny Nose?
There are many things that may cause a runny nose. The common cold, a type of respiratory infection caused by a virus, is one of the most likely culprits. It typically leads to a stuffy, runny nose, sore throat, and coughing; it may also cause a headache, low-grade fever, and appetite changes. Many people feel extra tired when they have colds as well. The common cold is highly contagious, but isn’t dangerous for most healthy people. Sometimes allergies can cause a runny nose. For example, if a person is allergic to something like flowers or pollen, her nose will run whenever she has significant exposure to the allergen. The same goes for people who are allergic to cats and dogs. Their noses may run and they may have the urge to sneeze whenever these animals are in their presence.
