Can fever blisters show up on your chin and lip and create jaw and ear pain?

Not exactly: If there is pain on the jaw or ear areas, associated with some blisters on the face, a doctor might want to examine the patient to see if it is shingles. Shingles needs treatment and followup, unlike the simple herpes lip sores that go away easily. Shingles is a recurrence of the chicken pox virus called zoster (or Herpes zoster, but is not the herpes in cold sores).