When the temperature changes, some people are prone to itchy nose, frequent sneezing and clear watery nose, does he have a cold? Why can’t he be cured by taking cold medicine for a long time? This time do not ignore a disease – allergic rhinitis, he may not actually be a cold, is the onset of allergic rhinitis, spring and autumn seasons, or when the temperature changes significantly, some people can not tolerate the changes in the external climate, or eat allergic food or drugs, it induced allergic rhinitis, some patients treatment of allergic rhinitis took a lot of detours, a long time to cure bad, only to think of going to the ear, nose and throat department This is because quite a few patients equate allergic rhinitis with the common cold. In fact, these are two completely different diseases. Both of them have symptoms such as runny nose, sneezing and nasal congestion, but allergic rhinitis is caused by allergies, usually with a lot of clear water nasal discharge, sneezing, sometimes ranging from 10 to dozens, with paroxysmal attacks, nasal congestion during attacks, and no nasal congestion during intervals, while colds can generally return to normal in 7 to 10 days on their own, so you can’t equate the two because their treatment is completely different.