Sinusitis causing headache without runny nose may be related to poor sinus drainage, inflammatory factors stimulating the nerves and inflammatory tissues and secretions pressing on the sinus orifices and other factors.
1. Poor sinus drainage: after sinus inflammation, the inflammatory secretion increases, mostly presenting the characteristics of sticky pus. When the sinus opening is blocked due to tissue edema, the cilia discharge function is impaired, the sinus drainage is blocked, and there may be no symptoms of runny nose.
2. Inflammatory factors stimulate the nerves: after the inflammation of the sinuses, the inflammatory factors can be released in the process of stimulating the nasal cavity, sinus sensory nerves, nasal sinus mucous membrane swelling, causing specific radiating areas of pain, such as forehead, face, temporal, top of the head and occiput and other stuffy pain discomfort.
3. Inflammatory tissue, secretion compression of the sinus: when the sinuses are inflamed, the mucous membrane in the sinuses and the sinus opening is swollen, and secretions are stagnant in the sinuses, squeezing the sinus opening or forming negative pressure in the sinus, which can be distended or vacuum-like pain without obvious runny nose.
When suffering from sinusitis not runny nose but headache, you can actively seek medical treatment, systematic examination to clarify the diagnosis and cause of the disease, follow the doctor’s instructions standardized treatment.