A sore throat is a common condition characterized by pain, irritation, or scratchiness in the throat, often making swallowing uncomfortable. It can be caused by viral infections like the common cold or flu, bacterial infections such as strep throat, allergies, dry air, or environmental pollutants. Treatment depends on the underlying cause, with viral sore throats typically resolving on their own, while bacterial infections may require antibiotics. Over-the-counter pain relievers, warm saltwater gargles, throat lozenges, and staying hydrated can help alleviate symptoms.