Acute sinusitis is usually caused by the common cold. Most cases end within a week or 10 days, and bacterial infection occurs. For acute sinusitis, you may need no more than home remedies. Sinusitis that lasts more than 12 weeks is called sinusitis.

Symptoms
Sinusitis signs and symptoms usually include:

Thick yellow or green mucus from the nose (rhinorrhea) or from the back of the throat (postnasal drainage)
Nasal obstruction or congestion, which makes it difficult to breathe through the nose
Feeling sore or tender to the touch and noticing swelling and pressure around the eyes, cheeks, nose or forehead, symptoms that get worse when you bend forward
Other signs and symptoms include:

ear pressure
headache
teeth pain
Altered sense of smell
cough
bad breath
fatigue
fever
When do you visit the doctor?
Most people with acute sinusitis do not need to see a doctor.

Call your doctor if you have any of the following:

Symptoms persist for more than two weeks or so
Symptoms get worse after they seem to be getting better
persistent fever
A history of recurrent or chronic sinusitis
See your doctor right away if you have signs or symptoms of a serious infection, such as:

Pain, swelling, or redness around your eyes
high fever
confusion
Double or other changes in vision
stiff neck.

Acute sinusitis is most often caused by the common cold, a viral infection. Sometimes infection is caused by bacteria.

risk factors
You may be more likely to develop sinusitis if you have any of the following conditions:

Hay fever or another allergic condition that affects your sinuses
A cold that affects your sinuses
Nasal passage abnormalities such as a deviated nasal septum, nasal polyps, or tumors
Certain medical conditions such as cystic fibrosis or an immune system disorder such as HIV/AIDS
Exposure to smoke, either from direct smoking or from exposure to secondhand smoke
Complications
Complications of acute sinusitis are uncommon, and serious complications are rare. If they occur, complications may include:

Chronic sinusitis Acute sinusitis may be an acute attack of a long-term problem known as chronic sinusitis. Chronic sinusitis lasts longer than 12 weeks.
Meningitis. This infection causes inflammation of the membranes and fluid surrounding the brain and spinal cord.
Another infection. Uncommonly, the infection can spread to the bones (osteomyelitis) or the skin (cellulitis).
vision problems If the infection spreads to the pupil, it can cause decreased vision, or even blindness, which can be permanent.

protection
Follow these steps to reduce the risk of acute sinusitis:

Avoid upper respiratory infection. Try to stay away from people who have colds or any other infection. Wash your hands frequently with soap and water, especially before eating.
Allergy control. Work with your doctor to manage symptoms.
Avoid cigarette smoke and polluted air. Tobacco smoke and other pollutants can irritate and inflame the lungs and nasal passages.
Use a humidifier. If the air in your home is as dry as if you had a hot air pump, adding moisture to the air may help prevent sinusitis. Keep the appliance clean and free of mold by cleaning it carefully and regularly.


Chronic sinusitis occurs when the spaces inside your nose and head (sinuses) become swollen for three months or longer, despite treatment.

This common condition interferes with the way mucus normally comes out and causes your nose to become blocked. Breathing through the nose may be difficult, and you may feel pain or swelling in the area around your eyes.

Chronic sinusitis can be caused by infection, by tissue growths in the sinuses (nasal polyps) or by swelling of the lining of the sinuses. Also called chronic sinusitis, this condition can affect both adults and children.

Symptoms
Common signs and symptoms of chronic sinusitis include:

Rhinitis
Nasal discharge that is thick and discolored
A runny nose sliding down the back of the throat (posterior nasal discharge)
stuffy nose or congestion; This makes it difficult to breathe through the nose
Pain, tenderness and swelling around the eyes, cheeks, nose or forehead
Impaired sense of smell and taste
Other signs and symptoms include:

ear pain
Pain in the upper jaw and teeth
coughing or sneezing
Sore throat
bad breath
fatigue
Symptoms and signs of chronic sinusitis and acute sinusitis are similar, but acute sinusitis is a temporary infection of the sinuses, often associated with the common cold. Signs and symptoms of chronic sinusitis last at least 12 weeks, but you may have acute episodes of acute sinusitis before the condition develops into chronic sinusitis. A fever isn’t a common sign of chronic sinusitis, but it can appear when you have acute sinusitis.

When do you visit the doctor?
Make an appointment with your doctor if:
You’ve had sinusitis several times, and the condition doesn’t respond to treatment
You have had sinusitis symptoms that last more than 10 days
Your symptoms don’t improve after seeing your doctor
See your doctor right away if you have the following signs or symptoms, which could indicate a serious infection:

fever
Swelling or redness around your eyes
Severe headache
swelling of the forehead
confusion
Double or other changes in vision
stiff neck.

Common causes of chronic sinusitis include:

Nasal polyps. These tissue growths can block the nasal passages or sinuses.
Deviated nasal septum. A crooked septum — the wall between the nostrils — may restrict or block the sinus passages, making sinusitis symptoms worse.
Other disease states. Complications of conditions such as cystic fibrosis, HIV, and other diseases related to the immune system may lead to a stuffy nose.
Respiratory infection. Respiratory infections — most commonly the common cold — can lead to inflammation and thickening of the sinus membranes and blocking the drainage of mucus. These infections may be viral, bacterial, or fungal.
Allergies such as hay fever. The inflammation that occurs with allergies can block the sinuses.
risk factors
Your risk of developing chronic sinusitis increases if you have any of the following:

deviated nasal septum
Nasal polyps
asthma
Allergy to aspirin
Dental infections
Immune system disorders, such as HIV/AIDS or cystic fibrosis
Hay fever or another type of allergy
Constant exposure to pollutants such as cigarette smoking.

Complications
Serious complications of chronic sinusitis are rare, but may include:

vision problems If sinusitis spreads to the eyeball, it may cause decreased vision or possibly permanent blindness.
Infections. Uncommonly, people with chronic sinusitis may develop inflammation of the membranes and fluid surrounding the brain and spinal cord (meningitis), a bone infection, or a serious skin infection.
protection
These steps should be taken to reduce the risk of developing chronic sinusitis:

Avoid upper respiratory infection. Limit contact with people who have colds. Wash your hands often with soap and water, especially before meals.
Control types of allergies. Work with your doctor to keep your symptoms under control. Avoid exposure to things you are allergic to as much as possible.
Avoid cigarette smoke and polluted air. Tobacco smoke and air pollutants can irritate your lungs and nasal passages and cause inflammation.
Use a humidifier. If the air in your home is dry, such as if you heated the air, adding moisture to the air may help prevent sinusitis. Make sure the humidifier stays clean and free of mold with regular, thorough cleaning.