Sinuses are located within the skull or bones of the head. There are 4 sets of sinuses: Frontal Sinus (behind the forehead), Ethmoid Sinus (in the root of nose), Maxillary Sinus (in the ocular orbits and maxilla), and Sphenoid Sinus (behind the nasal airways)

The internal sinus wall, which is the same as the nasal airway, produces mucus composed of bacteria, dust, pollen, and other particles. This mucus makes the inhaled air very humid, which is then warmed by the blood vessels before entering the lungs.

Nasal congestion is an increase of the blood flow to the nasal wall, which provokes a high production of mucus and inflammation. This is due to a virus, bacterial infection, or allergy.

If you have at least two of the following symptoms, you will rapidly develop sinusitis:
Sore throat, maxillary pain, bad breath, cough, leaking of mucus in the back of the throat, thick and greenish nasal mucus, nasal obstruction, facial sensitivity and pain, as well as headaches.

Allergy & Sinus is the most effective remedy to fight against all sinusitis symptoms within 24 hours.