RE: Poison ivy
Hot water works to kill the itch, but so does cold water. Wash with cold, soapy water each morning
Take benadryl as directed during the day and right before bed.
When you get in from work, place dry oatmeal on the rash for 20 mins. This works very, very well b/c the oatmeal absorbs the oil that makes you itch. Then wash with cold, soapy water again.