There is a thing called a "Neti Pot" that you can get from walgreens. You fill it up about half way with warm water and then mix in some Saline that comes in the box with it. You literally turn your head to the side and poor the water-Saline mix into one nostril and it comes out the other side... No I'm not lying. You do that in the mourning in both nostrils. I have one and in my opinion it helped a lot. Ha, I just remembered that I seen it one time on Ellen.
To alleviate dry sinuses after flying, you can try using a saline nasal spray, drinking plenty of water, using a humidifier in your room, and avoiding alcohol and caffeine. These methods can help keep your sinuses moist and relieve dryness.
Sudafed (pseudoephedrine) works as a decongestant by constricting blood vessels in the nasal passages, which reduces swelling and congestion. This helps open up the sinuses, allowing them to drain more effectively. It does not dry up the sinuses; rather, it alleviates blockage, facilitating better airflow and drainage.
dural sinuses, cerebral sinuses, or cranial sinuses
Paranasal sinuses are a group of four air-filled spaces. Maxillary sinuses surround the nasal cavity, frontal sinuses are above the eyes, ethmoid sinuses are between the eyes and sphenoid sinuses are behind the eyes.
The paranasal sinuses (which surround the nose) are found in the following bones: frontal, ethmoid, sphenoid, and maxillary. The maxillary sinuses are the largest of all sinuses. There are also sinuses found near the mastoid process of the temporal bone called the mastoid sinuses. The mastoid sinuses communicates with the inner ear, whereas the paranasal sinuses communicate with the nasal cavity.
There are four pairs of sinuses in the human body: frontal sinuses (in the forehead), maxillary sinuses (cheekbones), ethmoid sinuses (between the eyes), and sphenoid sinuses (behind the nose).
The frontal sinuses housed in the frontal bone are the largest sinuses.The maxillary sinuses are the second largest.
The main sinuses in the human skull are the maxillary, frontal, ethmoidal, and sphenoidal sinuses. The maxillary sinuses are located in the cheeks, the frontal sinuses are in the forehead area, the ethmoidal sinuses are between the eyes, and the sphenoidal sinuses are located behind the nose. These air-filled cavities help to lighten the skull, provide resonance to the voice, and contribute to the respiratory system.
Dry nasal passages may crack, allowing bacteria to enter. When allergies are diagnosed, a number of nasal sprays are available to try to prevent inflammation within the nasal passageways, thus allowing the normal flow of mucus.
Sinuses
If you have a headache just about your eyes, it is very likely that it is your sinuses. Sinus pressure can be very painful.
The superior sagittal sinus, straight sinus, and right and left transverse sinuses meet in a structure known as the confluence of the sinuses