When autumn arrives, the temperature plummets and the number of patients with allergic rhinitis increases, but many new patients treat allergic rhinitis as a cold and take cold medicine casually, with predictable results: on the one hand, the medicine does not work and even produces side effects, on the other hand, it delays the treatment of allergic rhinitis and even causes sinusitis. For this reason, it is very important to correctly distinguish between a cold and allergic rhinitis. Rhinitis caused by the body’s allergy to certain substances is called allergic rhinitis, also known as allergic rhinitis. Allergic rhinitis can cause a range of allergic symptoms and has a clear correlation with the development of sinusitis, nasal polyps, asthma and other diseases. Nasal itching, sneezing, runny nose and nasal congestion are the four most common symptoms of allergic rhinitis. Sneezing is most severe in the early morning or when waking up, mostly with multiple sneezes in a row suddenly. The nasal mucus is clear and can also be sticky due to nasal congestion or secondary infection. In addition, it may be accompanied by red, itchy and watery eyes, decreased sense of smell, stuffy ears, dizziness, headache and other symptoms. This disease is a hypersensitivity reaction triggered by external allergens that irritate the mucous membrane of the nasal cavity. Various pollen, dust, mites, animal fur, etc. floating in the air are common allergens. However, even in the same environment, not everyone suffers from allergic rhinitis, and there is also a relationship with allergic constitution. Most people with allergic rhinitis have a family history of allergies, but in recent years, due to increased air pollution, some people who were originally non-allergic have evolved into allergic. This disease is not life-threatening, but there are many people who suffer from it, and it is not cured for a long time, which makes people very headache. The reason is that people treat it as a cold, so how to distinguish between the cold and allergic rhinitis, there are the following ways to help you: 1. First of all, the cold is highly contagious, so most of the group, such as family, school, work environment, etc.; allergic rhinitis is not contagious, but can be inherited, so if there are blood relatives with allergic diseases, including allergic rhinitis, asthma, skin allergies, allergic to drugs, etc. Allergic allergies, such as drug allergies, family history, the possibility of attacks is greater. 2, allergic rhinitis episodes are paroxysmal, may only have one or several episodes in a day, more obvious in the early morning or after the stimulation of odor, after the attack as normal; and cold sneezing, runny nose and nasal congestion and other nasal symptoms are often persistent, nasal congestion is obvious, will continue for several days, with the control of the cold, the symptoms gradually reduced, and finally relieved. 3, allergic rhinitis nose itchy unbearable, nose as if there are always ants crawling; cold, nasal itch is not obvious, nasal congestion is obvious and persistent. 4, allergic rhinitis sneeze frequently, sneeze a can not brake, a dozen at once is not unusual; cold although also sneezing, but sneezing less, generally will not sneeze continuously. 5, allergic rhinitis runny nose, when the attack, a lot of clear water nasal mucus will “pour” down; cold will have clear water nasal mucus at the beginning, but the amount will not be very large, late nasal discharge can be clear or mucous to purulent, but also accompanied by respiratory tract infection and other symptoms. 6, the cold is usually caused by bacterial infection, systemic symptoms are heavy, such as chills, fever, weakness of the limbs, myalgia, headache, sore throat, gastrointestinal discomfort, etc.; while allergic rhinitis is not, only manifested as nasal symptoms or accompanied by asthma or skin allergies. 7, the duration of the cold is shorter, usually 1-2 weeks; while allergic rhinitis is no time limit, the course of the disease is longer, recurring throughout the year. Some allergic rhinitis patients have temporary improvement after taking cold medicine, this is because some cold medicine contains paracetamol has anti-allergic effect. If the cold is still not healed after a long time, the symptoms of itchy nose, sneezing, runny nose and nasal congestion still exist, then it is likely to be suffering from allergic rhinitis.