Give 4 cardinal signs of maxillary sinus?

The four cardinal signs of maxillary sinusitis are:

1. Facial pain or pressure: Patients may experience pain or pressure in the cheeks, upper teeth, or around the eyes. The pain may worsen when bending forward or lying down.

2. Nasal congestion: The maxillary sinuses are located near the nasal passages, so inflammation or infection can cause nasal congestion or a blocked nose.

3. Postnasal drip: Sinusitis can lead to excessive mucus production, which may drip down the back of the throat. This can cause a persistent cough or a feeling of mucus in the throat.

4. Toothache: The roots of the upper teeth are in close proximity to the maxillary sinuses. Inflammation or infection in the sinuses can cause referred pain, leading to a toothache or sensitivity in the upper teeth.