A. DRUG REACTION: Drugs (substances added to the body to cure diseases or help with symptoms) can have unexpected and unintended effects on the body. People can be born allergic to particular drugs, or can become allergic. Or an underlying syndrome can make the body's immune system respond with a host of symptoms -- the airways can close, blood supply can be affected, the skin can react -- causing shock, fever, even death.
B. POISON IVY: Contact with an oil (urushiol) found in poison ivy,...Full Story