Sinusitis, also known as a sinus infection, is a condition where the tissue lining the sinuses becomes inflamed. Normally, sinuses are filled with air, but they can become blocked and filled with fluid, leading to the growth of germs and subsequent infection. This inflammation can be caused by allergies, bacteria, viruses, or even fungi. Sinusitis can be acute, lasting for a short duration, or chronic, persisting for several months or even years.

Symptoms of sinusitis include nasal congestion, facial pain or pressure, thick nasal discharge that is often yellow or green, reduced sense of smell and taste, and coughing. Other symptoms can include headaches, fever, fatigue, and dental pain. The discomfort and pressure are often felt around the forehead, eyes, cheeks, and nose, and can worsen when bending over or lying down. Chronic sinusitis might also be accompanied by a persistent cough and bad breath.

Treatment for sinusitis generally aims to reduce the inflammation and clear the infection. Over-the-counter medications like decongestants and pain relievers can help manage symptoms. For bacterial sinusitis, antibiotics may be prescribed. Nasal corticosteroids and saline sprays can also help reduce inflammation and clear nasal passages. In more severe or chronic cases, a healthcare provider may recommend allergy treatments, including immunotherapy, or even surgery to correct structural blockages or drain the sinuses. Home remedies like staying hydrated, using a humidifier, and applying warm compresses can also provide relief. Consulting a healthcare provider is crucial to determine the best treatment plan based on the specific type and severity of sinusitis.