Ever wondered what really causes a sinus infection? There are many possibilities and it is sometimes hard to pinpoint which one is the culprit. You could have gotten it while you are at work, out in the mall, doing a certain activity or even at home so here are some of the known causes of sinus infections.
Most sinus infections are caused by the common cold otherwise known as viral influenza. This causes congestion in the nasal passages and inhibits the drainage of the sinuses which is why it becomes inflamed.
When this happens, the nose is filled with mucus caused by the accumulation of white blood cells in the lining of the nose. This makes it difficult for the person to smell or even breathe and the only way to get rid of it is to blow it out.
Generally a common flu stays a maximum for a period of one week. After that we usually recover, but it leaves our sinuses inflamed. The nose is a very sensitive part of our body which catches a viral infection very easily.
Sinus infection can also be caused by exposure to dust particles, pollen and other irritants in the air. If there is too much of this already in the nasal passages, it prevents mucus...
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