Acute rhinosinusitis, commonly referred to as acute sinusitis, is an inflammation of the lining of the nose and sinuses that typically lasts less than four weeks. It’s a condition that many people experience, often accompanied by discomforting symptoms such as fever, thick nasal discharge, and facial pressure. Understanding the causes, symptoms, and when to seek medical care is crucial for managing this common condition effectively.
Symptoms and Causes of Acute Sinusitis
Acute sinusitis manifests through various symptoms, including a fever higher than 100.4°F, thick yellow or green nasal discharge, sinus or ear pressure, tooth pain, and a reduced sense of smell. Other symptoms may include a persistent cough, headache, bad breath, and fatigue.
The most common cause of acute sinusitis is a viral upper respiratory infection, making viral sinusitis the predominant form of this condition. Bacterial sinusitis, while less common, can occur in about 3% of cases. Distinguishing between viral and bacterial sinusitis can be challenging, but generally, if symptoms last fewer than ten days, it’s likely viral. However, a bacterial infection may be suspected if symptoms persist beyond ten days without improvement or initially improve and then worsen.
Do You Need Antibiotics for Acute Sinusitis?
Antibiotics are only effective against bacterial infections, and since the vast majority of acute sinusitis cases are viral, antibiotics are not usually beneficial. Overusing antibiotics when they are not needed can lead to adverse effects, including an upset stomach, the depletion of healthy gut bacteria, and the development of antimicrobial resistance. Most people with acute sinusitis can manage their symptoms with non-antibiotic interventions, and even those with bacterial sinusitis often improve without antibiotics within a month.
Relieving Symptoms of Acute Sinusitis
Treatment for acute sinusitis focuses on relieving symptoms rather than shortening the illness’s duration. Some effective non-prescription therapies include:
- Saline rinses and sprays: Reduce nasal congestion and discomfort (e.g., Ayr nasal spray, Neil Med sinus rinses).
- Pain relievers: Help manage pain and reduce inflammation (e.g., Ibuprofen, Acetaminophen).
- Nasal steroid sprays: Reduce swelling inside the nose (e.g., Flonase, Rhinocort).
- Nasal anticholinergic spray: Reduces a runny nose (e.g., Ipratropium).
- Oral decongestants: Alleviate sinus and ear pressure (e.g., Pseudoephedrine).
- Nasal decongestants: To avoid rebound congestion, they should not be used for more than 3-5 days (e.g., Oxymetazoline).
- Mucolytics: Thin out mucus to make it easier to expel (e.g., Guaifenesin).
Reference: clevelandclinic.org
When to Seek Medical Attention
While most cases of acute sinusitis resolve with time and symptomatic treatment, it’s important to seek medical care if you experience persistent high fever, severe pain in the face, double vision, confusion, or if symptoms persist beyond 10 days without improvement. Recurrent sinus infections could indicate underlying issues such as allergies or chronic sinusitis, and a consultation with an ENT or Allergy specialist may be beneficial.

Visit Colorado ENT & Allergy
At Colorado ENT & Allergy, our experienced team is dedicated to providing compassionate and expert care for all your ENT and allergy needs. Whether you’re dealing with acute sinusitis or other ENT and Allergy concerns, we are here to help you feel better. Visit us at one of our Colorado Springs locations or call us at 719-867-7800 to schedule an appointment.
