Shingles :
Shingles is a rather very painful skin infection due to the reactivation of the chickenpox virus which hibernates in the body after having a previous infection with the chickenpox virus. As the virus travels along nerve fibers to the skin, it is known to produce a rash which usually appears on one side of the body, typically around the torso or face, or eyes. The key features are a stinging, prickling or burning sensation that becomes red rash leading to blistering. The blisters crust over eventually. Shingles can lead to neuralgia which is a condition marked by the persistence of pain even after the rash subsides. Shingles is most common among older adults and immunocompromised patients but it can affect anyone who has ever been infected with chickenpox. The disease is highly contagious to those who have not had chickenpox or it's vaccination. The treatment of this disease in patients often involves administering antiviral drugs to reduce the period and intensity of the disease. Patients receive drugs to alleviate pain as well. Getting vaccinated is the best way to prevent shingles.