... signs of toxicity Pemphigus vulgaris Oral mucosa Usually and skin; sites of (>70%) With repeated presents occurrence of bullae, mechanical trauma with oral lesions; toxicity may lead to (soft/hard ... common trigeminal nerve or Oral acyclovir, one of its branches famcyclovir, or valacyclovir reduce healing time and postherpetic neuralgia Infectious Oral mucosa Fatigue, Oral lesions mononucleosis ... bleeding and multiple petechiae at junction of hard and soft palates Herpangina Oral mucosa, Sudden Incubation (coxsackievirus A; pharynx, tongue onset of fever, sore period also throat, possibly...