After living with Juvenile Rheumatoid Arthritis for so long, pain-killers have, unfortunately, become part of my life. I use them only when necessary, usually when I'm unable to sleep because of the pain or recovering from surgery. I try to limit myself to 3 nights with pain-killers, 1 night without. This is mostly to retain my body's ability to fall asleep without having to rely on medications.
This is the pain-killer I tend to use when I'm having skin or nerve pain. It's also the pain-killer I take if I need to take one during the day, as it doesn't make me as sleepy as Tylenol #3s. It can, however, have the opposite effect of making me a little jittery.
This is the pain-killer I tend to use when I'm having joint or muscle pain. The side effect of drowsiness is particularly useful if I'm having trouble sleeping because of the pain.
Morphine's a great drug for dealing with severe pain, such as when recovering or waking up after surgery. After using this drug for several recovery periods after surgeries, I developed a sudden allergy to it in the summer of 2007. I'm not only allergic to morphine now, but all morphine-derivatives.