Other clear examples of medical progress without animal experiments include: the introduction of anaesthetics such as chloroform, ether, and nitrous oxide: understanding of sterile techniques in surgery' understanding of the blood groups,
For the ancient Greek article of dress, see Zoster (costume). Shingles, also known as herpes zoster, is a viral disease characterized by a painful skin rash with blisters in a localized area. Typically the rash occurs in a single stripe either on the left or right of the body or face. Two to four days before the rash occurs there may be tingling or local pain in the area.
When you get a shingles rash, it typically involves a particular âdermatome,â that is, the skin area supplied by the involved nerve usually on one side of the body or face. However, in some cases the shingles rash can be widespread. Before the rash appears, people may have nerve symptoms of pain, itching, burning, or tingling. The rash has blisters that scab over in about a week. Although shingles isnât contagious, the virus can spread to others and can cause chickenpox.