Is felt as a continuous burning pain along the distribution of the Trigeminal Nerve. It is the result of inflammation within the nerve from trauma, bacterial, viral, or toxins. Numbness, tingling and hypersensitivity around the affected area can accompany the pain. Treatment can include medications and injections aimed at eliminating the inflammation around the nerve.
Herpes Zoster is a form of neuritis, which also produces small vesicles along the distribution of the nerve. These vesicles are present 4-5 days after the onset of pain. Ramsay-Hunt syndrome is similar but affects the facial nerve and the vesicles are located in the ear and throat.