Infection leads to the accumulation of pus (comprising dead tissue, live and dead bacteria, and white blood cells) and tissue swelling within the tooth, resulting in a painful toothache. Should the tooth's pulp perish, the ache may cease, unless an abscess forms, especially if the infection persists, causing further tissue destruction. This condition, known as "Pus in mouth," underscores the severity of dental infections. Immediate attention and treatment are crucial to prevent complications and alleviate the discomfort associated with this oral health issue. https://www.smileoracles.com/dental-abscess-pus-in-the-mouth/