A throat infection is an inflammation of the throat, often caused by viruses or bacteria. Common symptoms include a sore throat, difficulty swallowing, and swollen lymph nodes. Infections can be mild, like those caused by the common cold, or more severe, such as those caused by Streptococcus bacteria, which can lead to strep throat. Treatment for throat infections depends on the cause. Viral infections usually resolve on their own, while bacterial infections may require antibiotics. Staying hydrated and using over-the-counter pain relievers can help alleviate symptoms. If symptoms persist or worsen, it is important to consult a healthcare professional.