Toothache that is constant, throbbing, or severe
Pain when chewing or biting
Sensitivity to hot or cold that lingers
Swelling in the gum, face, or jaw
Red, tender, or swollen gums near the tooth
A pimple-like bump on the gum
Pus or a bad taste in the mouth
Bad breath that does not go away
Tooth discoloration or darkening
Fever
Swollen lymph nodes in the neck or jaw
Difficulty opening the mouth
Difficulty swallowing or breathing
Pain that spreads to the ear, jaw, or neck