Upper Respiratory Infection

Adults catch an average of 2-3 upper respiratory infections each year, while children can get up to 8-10. These infections affect the nose, throat, and sinuses, causing symptoms from runny noses to persistent coughs that can linger for weeks. At United Family Physicians in Glendora, California, providers Khanh Thai, DO, and Paul Moya, DO, help you distinguish between a simple cold and something that requires medical attention. If your symptoms aren’t improving, call the office or book your appointment online for expert care.

What is an upper respiratory infection?

An upper respiratory infection affects the parts of your respiratory system above your lungs (nose, throat, sinuses, and voice box). 

These infections are incredibly contagious and spread through droplets when someone coughs, sneezes, or talks. You can also catch them by touching contaminated surfaces and then your face.

What causes an upper respiratory infection? 

Viruses cause the vast majority of upper respiratory infections. Rhinoviruses are the most common culprit, but others include coronaviruses, adenoviruses, and respiratory syncytial virus (RSV).

Bacterial infections are less common but can occur, especially with sinus infections or strep throat. These typically require different treatment than viral infections.

What are the symptoms of an upper respiratory infection? 

Upper respiratory infection symptoms usually develop gradually and can include:

• Runny or stuffy nose
• Sore throat
• Cough (dry or with mucus)
• Sneezing
• Low-grade fever
• Headache
• Body aches
• Fatigue

Symptoms typically peak around days 3-5 and slowly improve over 7-10 days, though a lingering cough can persist for several weeks even after other symptoms resolve.

When should I see a doctor for an upper respiratory infection? 

Most upper respiratory infections resolve on their own with rest and supportive care, but you should schedule a visit if you experience the following:

• Fever over 101.5°F for more than 3 days
• Severe headache or sinus pain
• Persistent cough with thick, colored mucus
• Difficulty breathing or wheezing
• Symptoms that worsen after initially improving
• Ear pain or drainage

These could indicate a bacterial infection or complications that need medical treatment.

How are upper respiratory infections treated? 

Treatment depends on whether your infection is viral or bacterial. Viral infections don’t respond to antibiotics, so treatment focuses on symptom relief through rest, fluids, and over-the-counter (OTC) medications.

Bacterial infections may require antibiotics, which your doctor prescribes based on your specific symptoms.

Your United Family Physicians provider can determine the type of infection you have and recommend the most effective treatment to help you recover faster.

Don’t let upper respiratory symptoms drag on longer than necessary. Schedule your evaluation with United Family Physicians by calling the office or booking online today.