Pharyngoxerosis is a medical condition characterized by dryness of the pharynx, which is the part of the throat located behind the mouth and nasal cavity. This dryness can result from various factors, including dehydration, environmental conditions, and certain medical conditions like Sjögren's syndrome. Symptoms may include a sore throat, difficulty swallowing, and a persistent feeling of dryness. Treatment typically focuses on addressing the underlying cause and may involve hydration or the use of throat moisturizers.