Condition	Symptoms	Signs
Dental pathology
Tooth abscess	Pain with chewing over affected tooth	Visible tooth decay; fluctuance along gum line; pain with palpation over the tooth
Wisdom tooth eruption	Dull ache behind posterior molars	Tenderness to palpation over emerging tooth
Infection or inflammation
Herpes zoster and postherpetic neuralgia	Prodrome of pain followed by vesicular rash	Vesicular rash in dermatomal distribution, not crossing midline
Mastoiditis	Fever; otalgia	Postauricular erythema and swelling; tenderness over mastoid process
Otitis externa	Pruritus, pain, and tenderness of the external ear	Erythema and edema of external auditory canal
Otitis media	Fever; malaise; otalgia	Tympanic membrane dull, bulging, erythematous; loss of landmarks on tympanic membrane
Parotitis	Fever; malaise; myalgia; pain over parotid gland	Tenderness and induration over parotid gland
Sialadenitis	Pain and swelling of involved salivary gland	Tenderness, induration, and/or erythema of salivary gland; usually unilateral
Trigeminal neuralgia	Paroxysmal, unilateral lancinating pains in trigeminal nerve distribution	Examination generally normal