Common Sinusitis Symptoms and How to Recognize Them Early

Sinusitis, commonly known as a sinus infection, is a frequent condition we treat at SoCal Urgent Care. If you’re experiencing symptoms such as nasal congestion, thick yellow or green nasal discharge, or facial pain and pressure around your cheeks, eyes, or forehead, you may be dealing with sinusitis. These symptoms can make breathing uncomfortable and may worsen when you bend over or lie down.
 
Many patients also report a reduced sense of smell or taste, nighttime coughing, and sore throat caused by postnasal drip. Headaches—especially above or below the eyes—are another common complaint. Sinusitis can also make you feel generally tired or unwell, and sometimes cause a low-grade fever. While these symptoms are similar to those of a common cold, sinusitis symptoms typically last longer than ten days or may worsen after you start to feel better.
 
At SoCal Urgent Care, our experienced medical team can evaluate your symptoms, provide a proper diagnosis, and recommend the most effective treatment to help you recover quickly. If your symptoms are persistent, severe, or not improving, don’t hesitate to visit us for prompt, compassionate care.

At SoCal Urgent Care, we know that distinguishing between a sinus infection (sinusitis) and a common cold can be confusing, as both conditions often share symptoms like nasal congestion, runny nose, sneezing, and sore throat. Our experienced providers can help you identify what’s causing your discomfort and recommend the right treatment.
 
Key Differences Between a Cold and Sinus Infection

A common cold is usually caused by a virus and develops gradually. Symptoms—such as congestion, mild fatigue, low-grade fever, and a general sense of feeling unwell—typically last about a week and often resolve on their own. You might notice your mucus change from clear to slightly thicker or colored, but this doesn’t always mean you have a sinus infection.
 
Sinus infections, on the other hand, may develop after a cold or when your sinuses become inflamed or infected, sometimes due to bacteria. Sinusitis often causes more pronounced facial pain or pressure, particularly around your cheeks, eyes, or forehead—symptoms that may worsen when you bend over. You may also experience thick yellow or green nasal discharge, a reduced sense of smell or taste, and a persistent cough, especially at night. Sinus infection symptoms usually last longer than those of a cold, often persisting beyond 10 days or worsening after initial improvement. While fever can occur with sinus infections, it is less common in adults with a typical cold.
 
When Should You See a Provider at SoCal Urgent Care?

If your symptoms are severe, last more than 10 days without improvement, or include significant facial pain, headaches, vision changes, or swelling around the eyes, it’s important to seek prompt medical attention.

At SoCal Urgent Care, we frequently see patients suffering from sinusitis—a condition where the sinus passages become inflamed and blocked, causing pain and discomfort. Sinusitis symptoms can develop or worsen over time due to various factors, and understanding these can help you know when to seek prompt medical attention.
 
Common Causes of Sinusitis

• Viral Infections: Often, sinusitis begins with a viral upper respiratory infection like the common cold. This can cause swelling of the sinus lining and increased mucus production. When your sinuses are blocked, mucus can’t drain properly, creating an ideal environment for bacteria (and sometimes fungi) to grow and lead to a more serious infection.
 
• Allergies: Allergic reactions to pollen, dust mites, pet dander, and other triggers are a major cause of sinus inflammation. Allergies can cause ongoing or recurring sinus problems if not properly managed.
 
• Environmental Irritants: Exposure to cigarette smoke, air pollution, and chemical fumes can further irritate your sinuses, worsening inflammation and symptoms.
 
• Structural Problems: Issues like a deviated septum, nasal polyps, or enlarged turbinates can make it harder for sinuses to drain, increasing your risk for infections and chronic sinusitis.
 
• Chronic Health Conditions: Conditions such as asthma or immune deficiencies can make you more susceptible to sinus infections and hinder recovery.
 
• Other Factors: Swimming in chlorinated pools, dental infections, or overuse of nasal decongestant sprays can also contribute to sinus irritation and blockage.

Absolutely—at SoCal Urgent Care, we frequently see patients whose sinusitis symptoms are triggered by allergies and changes in the seasons. Sinusitis occurs when the tissues lining your sinus cavities become inflamed or swollen. Common allergens in Southern California, such as pollen, dust mites, or pet dander, can cause your nasal passages to swell and produce more mucus. This allergic reaction may block normal sinus drainage, increasing the risk of infection or persistent sinus discomfort.
 
Here in the SoCal area, spring and fall often bring high pollen counts, which can worsen symptoms for people with allergic rhinitis (hay fever). Typical symptoms include nasal congestion, facial pain or pressure, headaches, postnasal drip, and a reduced sense of smell. These issues are often more noticeable during peak allergy seasons when your immune system is working overtime to fight off allergens, leading to sinus inflammation.
 
In addition, Southern California’s unique climate means that sudden temperature or humidity changes can also affect your sinuses. Dry Santa Ana winds, for example, may irritate your nasal passages, while cooler months often bring an increased risk of respiratory viruses—all of which can make sinus symptoms more severe.
 
What Can You Do?

Managing allergies by avoiding triggers, using antihistamines or nasal corticosteroids, and practicing good sinus hygiene can help reduce your risk of sinusitis. If your symptoms persist or worsen, don’t hesitate to visit SoCal Urgent Care. Our experienced providers can evaluate your condition, recommend effective treatments, and help you breathe easier—no matter the season.
 
If you’re struggling with sinus symptoms, stop by SoCal Urgent Care or schedule a visit today. We’re here to help you feel your best, year-round. For more information, contact us or request an appointment online. We are conveniently located at 710 S Brookhurst St. Suite A, Anaheim, CA 92804 (less than 3 miles away from Disneyland). We serve patients from Anaheim CA, Buena Park CA, La Palma CA, Cerritos CA, Cypress CA, Stanton CA, Garden Grove CA, Fullerton CA, Placentia CA, and Olive CA.