Shingles, also called herpes zoster, is a viral disease that can cause a painful, blistering rash, which usually appears on one side of the body. It's caused by the same virus that causes chickenpox.
Amphetamines are powerful central nervous system stimulants derived from the ephedra plant. They're used to treat disorders such as ADHD, narcolepsy and obesity. However, they can also be highly addictive and have harmful side effects.