Sinusitis (Sinus Infections)

Sinusitis, also called a sinus infection, is inflammation of the sinuses, the air-filled spaces behind the forehead, cheeks, and eyes. When the lining of these spaces swells, mucus gets trapped and causes facial pressure, nasal congestion, and thick drainage. Most sinus infections are caused by viruses, often beginning as a common cold, and clear on their own without antibiotics. Some infections are bacterial and may need treatment. Avita MD primary care providers diagnose and treat sinusitis for adults in Los Altos, Mountain View, and Los Gatos.

What are the symptoms of sinusitis?

Sinusitis often follows a cold and brings a feeling of pressure or fullness in the face. Symptoms can overlap with allergies and other respiratory infections.

• Facial pain, pressure, or fullness, often worse when bending forward
• A stuffy or runny nose
• Thick nasal discharge or postnasal drip down the throat
• Headache and reduced sense of smell
• Cough, sore throat, or bad breath
• Low-grade fever and fatigue

Viral vs. bacterial sinusitis

Viral sinusitis	Possible bacterial sinusitis
Most common cause	Less common
Improves within about 7 to 10 days	Symptoms last more than 10 days
Usually gets steadily better	Improves, then worsens again
Antibiotics do not help	Antibiotics may be needed

How does Avita MD diagnose and treat sinusitis?

Diagnosis usually starts with your symptom history and a physical exam of the nose, face, and throat. Because most sinus infections are viral, your Avita MD provider often focuses on relief through saline rinses, decongestants, pain relievers, and rest, and explains what to watch for. When symptoms point to a bacterial infection, such as lasting longer than 10 days or improving and then worsening, an antibiotic may be prescribed and your provider follows up to confirm you recover.

Same-day and next-day appointments mean you can be seen quickly when congestion and facial pressure are making daily life hard. Avita MD tracks your history over time, which helps tell apart a one-time infection from recurring sinusitis or allergies. For severe, recurrent, or chronic cases that may need nasal endoscopy or a CT scan, your provider coordinates referrals to ear, nose, and throat specialists so the right next step happens without delay.

When should you see a doctor about sinusitis?

See a primary care provider if sinus symptoms last more than 10 days without improving, if they get better and then suddenly worsen, or if you have a high fever along with facial pain and thick nasal discharge. Frequent or repeated sinus infections are also worth evaluating, since they can point to allergies or other underlying causes. Seek urgent care for severe headache, swelling or redness around the eyes, vision changes, confusion, or a stiff neck, because these can signal a serious infection that needs immediate attention.