Analog RGB signals carry video information for the three primary video colors on separate signals, one for each color. Formats that use analog waveforms for RGB signals in home entertainment systems include component video and video graphics array.
Sinus infection, or sinusitis, is an inflammation of the sinuses and nasal passages. A sinus infection can cause a headache or pressure in the eyes, nose, cheek area, or on one side of the head.
For chronic sinusitis, antibiotics and nasal corticosteroids are the main treatments, but this condition is difficult to treat and does not always respond to these drugs. Other drugs may also be prescribed. If drugs are ineffective, some patients with chronic sinusitis may need surgery.