When you swallow, a sore throat may become even more painful than it already is. A sore throat can lead to ear and sinus infections, among other complications. In addition, an abscess (a collection of pus) can develop near your tonsils, which can be very uncomfortable. When you have a sore throat, you are experiencing discomfort and irritation in your throat, which may be swollen or scratchy. The pain is usually even more intense than it already is when you swallow.