Shingles
Shingles is a reactivation of chicken pox virus in the body. After you have experienced chickenpox, the virus remains in your body, and can come back as this painful blistering rash. Although it is more common on the chest, back, or belly, it can also spread to the face. The pain is usually in form of a tingle, burn, and itch, forming a red, fluid-filled blisters. In some cases, the pain remains even after the rash heals. Usually a shingles vaccine is used to prevent it can also be used to treat it.
Conclusion
Basically, facial pain comes as a result of any form of injury or infection in the different organs on the face, i.e. the eyes, mouth, nose, and ear. The best advice for anyone with severe, worsening, or persistent facial pain is that they should see a doctor. The earlier you have it treated, the better it will become.