When the tissues lining the sinuses swell or become inflamed, it is called sinusitis, or sinus infection. Numerous things, such as viruses, bacteria, fungi, allergies, or structural problems with the nasal passages, might contribute to this illness.Depending on the severity and underlying cause, sinus infection symptoms can vary, but can include:congestion in the nose: Nasal congestion or a blocked nose is one of the classic signs of a sinusitis. This happens because breathing via the nose becomes difficult due to the enlarged tissues obstructing the nasal passages.discomfort or pressure in the face: Inflammation of the sinuses can result in discomfort and pressure in the face, especially in the areas surrounding the eyes, cheeks, and forehead. Lying down or bending forward may exacerbate this pain. Another typical symptom is a headache, which is typically described as a dull, throbbing pain in the cheekbones, forehead, or behind the eyes.Nasal discharge: Thick, yellowish mucus produced by a sinus infection may run out of the nose or down the back of the throat (postnasal drip). Cough: People who have sinusitis sometimes get a cough, especially if they get sore throats from postnasal drip.Sore throat: An irritated or sore throat may result from mucus draining down the back of the throat.Fatigue: Because of the body's laborious efforts to fight off the infection, sinus infections can leave people feeling lethargic and exhausted. Fever: A low-grade fever may occasionally accompany a sinus infection, particularly if the infection is bacterial in nature.Diminished sense of taste and smell: The sinusitis-related inflammation and congestion can cause problems with taste and smell perception.Typically, treating a sinus infection entails treating the underlying cause as well as symptom relief. This could include over-the-counter or prescription drugs including antihistamines, nasal corticosteroids, decongestants, or antibiotics (in the event that the illness is bacterial). Apart from pharmaceuticals, natural therapies including warm compresses, steam inhalation, and saline nasal irrigation can ease symptoms and encourage drainage. For a precise diagnosis and a suitable treatment plan, it's crucial to speak with a healthcare provider, particularly if the symptoms are severe, persistent, or feverish. Chronic or recurrent sinus infections may necessitate additional testing by an otorhinolaryngologist.