Basically, all people will suffer from sinusitis in their lifetime, just like a “cold”. But those with mild symptoms will recover naturally as they recover from the “cold”. Generally, the course of acute sinusitis is similar to that of a cold, about a week or so. We all know “sinusitis”, what exactly is sinusitis? In clinical work, some patients say, “I have “frontal sinusitis” not “sinusitis”, or I have “rhinitis” not “sinusitis The “sinusitis”, we do not have a whole concept of “sinusitis”, do not have a complete understanding of sinusitis. The so-called “sinusitis” is the “sinus” inflammation, then, what is the “sinus”? “The sinuses are the air-containing cavities that surround the nasal cavity and lend themselves to nasal communication. There are four pairs, eight in total. The simple understanding is that the frontal sinus between the two eyebrows (two), the sieve sinus between the two eyes (two), the maxillary sinus below the two eyes (two), and the butterfly sinus at the end of the nose, in the bone above the small tongue of the throat (two). These “sinuses” are like eight “tile pots”. But the openings are located in the nasal cavity. So a “cold” can easily lead to “sinusitis”. These “sinuses” because the location is different, so the clinical symptoms after the attack is also different. One, “frontal sinusitis”: mainly the forehead of the orbit of the inner upper corner of the pain, sometimes can appear tearing situation. The headache of frontal sinusitis has a pattern, generally the pain is soon after waking up in the morning, to the most powerful at noon, but gradually alleviated after the afternoon, some of the evening is fine, this is why? Because the frontal sinus position is too high, the drainage mouth is located below, after waking up because upright, pus gradually emptying, so the symptoms are also reduced. Second, “sieve sinusitis”: sieve sinus is longer from front to back and has a complex structure. The clinical headache is mild, but takes various forms, including pain and soreness in the inner corner of the eye and the root of the nose, frontal pain, and pain that increases with eye movement. The pain caused by sieve sinusitis also has a pattern, similar to that of frontal sinusitis, and is also light in the morning and heavy in the afternoon. 3. “Maxillary sinusitis”: It is the inflammation of the sinuses at the position inside the face on both sides of the nose. The maxillary sinus is the lowest position of all sinuses, so the pain is different from the above sinusitis, mainly the facial pain at the head of the nose, pressure pain, or the performance of the front toothache. Some inflammations involve the nerves and show frontal and eye pain. The general pattern of pain in maxillary sinusitis is that it does not hurt to wake up in the morning and gradually worsens in the late afternoon. This is because the position of the maxillary sinus is low, the drainage mouth of the maxillary sinus is located in the lower corner of the inner eye, and the inflammatory pus is deposited after standing, and the drainage is not smooth to drain out, so the symptoms gradually worsen. Fourth, “butterfly sinusitis”: the butterfly sinus is located deep in the base of the skull, the surrounding structures are more complex. It appears inflammation, performance symptoms are more backward, usually deep dull pain in the eye, or the back of the head, behind the ear pain. Because the natural drainage opening of the pterygoid sinus is also positioned upward, the drainage is not smooth after standing. Therefore, the pain is light in the morning and heavy in the afternoon. The above is a brief introduction to the different sinuses and the different clinical symptoms after the lesion occurs. I hope you have an understanding of “sinusitis”. However, in general, there are not a few patients with sinusitis in the whole group, and the symptoms are not so typical. Most of the common causes of headaches in young people are in the nasal sinuses. If you have headache symptoms and nose symptoms, it is recommended that you go to the ENT department first to rule out sinus and nasal diseases before going to the neurology department. However, in elderly people, it is still recommended to go to neurology first to rule out cerebrovascular disease.