Infections or environmental reasons, such as dry air, cause most sore throats. While a sore throat may be unpleasant, burning, dry, and scratchy, it normally goes away. Sore throats are categorized into kinds, based on their affected portion of the throat, pharyngitis, tonsillitis, laryngitis. Sores due to an infection normally improve by themselves for 1-7 days. Consult a doctor for more serious symptoms.