When the headache symptoms caused by bilateral sieve sinusitis are mild, they are mainly in the area between the two eyebrows and the occipital area, and when the headache symptoms are more severe, they can spread to the inner canthus and the upper eyelid and other parts of the body. When bilateral sieve sinusitis occurs, it is usually accompanied by symptoms such as nasal congestion, runny nose, headache, loss of sense of smell, etc. When the headache symptoms are mild, the pain site is more limited, mainly concentrated in the body projection of the sieve sinuses, that is, between the two eyebrows and occipital area. When the inflammation is more severe, the range of pain can spread to the inner canthus and the skin of the upper eyelid, causing symptoms such as acute conjunctival congestion. Bilateral sieve sinusitis can cause headaches, mainly because of increased secretions in the sieve sinuses, which in turn leads to obstruction of sieve sinus drainage. In addition to headache symptoms, it is also accompanied by fever, cold, nasal congestion, runny nose, etc. It is recommended to go to the hospital as soon as possible. It is recommended to go to a specialized hospital as soon as possible if you have the above symptoms, and then actively fight infection under the guidance of the doctor after diagnosis. Bacterial infection, can take amoxicillin clavulanate potassium dispersible tablets; headache is more serious, you can use analgesic drugs, such as ibuprofen extended-release capsules; but also with mucosal vasoconstrictor together with the treatment, such as naphazoline hydrochloride nasal drops and so on.