No
No one can catch a sinus infection from another person, but the viruses and bacteria that cause colds and other respiratory tract * infections that can trigger sinusitis may spread from person to person in drops of fluid from the nose or mouth.  A. Viral infections that lead to sinusitis may be contagious; bacterial sinusitis is generally not. It’s important to remember that most viral upper respiratory infections (common colds) cause nasal congestion, which may involve the sinuses. If the viral sinus infection lasts well past the normal duration of a cold, viral sinusitis may be diagnosed. These viruses are highly contagious and likely to cause a cold in others who come in contact with them. Bacterial sinusitis most often occurs as a complication of a viral common cold. Bacteria that are normally present in the nose and throat take advantage of the viral infection to invade the inflamed sinus passag Sinus infection can occur after we have suffered a bout of the common cold, viral influenza and hay fever. This is because nasal congestion is the main reason why sinus infection happens. Nasal congestion results when the mucous membranes lining the nose become swollen from blood vessels inflammation. When we breathe, air which contains irritants, pollutants and pathogens, must first enter our nose. Sinus infections usually begin with the symptoms of a cold (for example, a runny nose, occasional cough and/or mild fever), and then develop into pain and pressure in the sinus cavities. About 7 to 10 days after initial cold-like symptoms other symptoms develop that suggest you may have a sinus infection.  Technically, a sinus infection (sinusitis) is not an infection, but it refers to the inflammation or swelling of the tissues that line the sinuses. Such swelling or inflammation occurs when the sinuses get blocked and filled with fluid (mucus). ☛ Your doctor may treat you with antibiotics if you have a bacterial sinus infection that is severe, persistent (stays for more than 10 days) or recurring. Otherwise, the above self-care measures are good enough to manage the condition. ☛ A bacterial sinusitis is usually a complication that arises from a viral sinusitis. Bacteria are normally present in the nose and throat. A viral infection inflames the sinuses and causes them to become clogged with mucus, creating a moist environment. ☛ Your doctor may treat you with antibiotics if you have a bacterial sinus infection that is severe, persistent (stays for more than 10 days) or recurring. Otherwise, the above self-care measures are good enough to manage the condition. Before you ask if sinusitis is contagious, determine what type of sinus infection you have. This will help you in a more important aspect: getting medication. The two types of sinus infection are acute and chronic. Acute sinusitis usually lasts no longer than two months, and does not recur more than three times a year. The better question to ask is if you are suffering from it. Signs of a Sinus Infection The inflammation of nasal passages that are signs of a sinus infection can also result in headaches, and other facial aches. With cold usually preceding sinus inflammation, infection may also come with fever, sore throat and cough. A sinus infection is not a contagious disease. However, if it results from a viral infection such as the common cold, then the causal pathogen may be passed from person to person. More information on this subject has been provided in the following article. Advertisement. ☛ Your doctor may treat you with antibiotics if you have a bacterial sinus infection that is severe, persistent (stays for more than 10 days) or recurring. Otherwise, the above self-care measures are good enough to manage the condition. The common cold is a viral infection. Colds can lead to sinusitis symptoms, but these usually clear by themselves. Antibiotics do not treat viruses, so they won't help the sinus symptoms of a cold. Cold symptoms end in seven to 14 days. Usually, cold-related sinusitis goes away then, too. Shown here is a magnified, color-enhanced image of a rhinovirus pathogen responsible for the common cold.
http://www.humanillnesses.com/Infectious-Diseases-My-Si/Sinusitis.html http://answers.webmd.com/answers/1198027/is-sinusitis-contagious http://www.sinusinfectionhelp.com/sinus-infections-contagious.html http://www.medicinenet.com/is_a_sinus_infection_contagious/article.htm http://www.buzzle.com/articles/sinusitis-is-sinus-infection-contagious.html http://www.buzzle.com/articles/sinusitis-is-sinus-infection-contagious.html http://sinusreference.com/is-a-sinus-infection-contagious/ http://www.buzzle.com/articles/sinusitis-is-sinus-infection-contagious.html http://www.webmd.com/allergies/sinusitis-and-sinus-infection?page=2
is a sinus infection contagious