Imagine you are in the hospital being treated for a fairly serious illness. It's treatable, and you will eventually feel better once a proper medication course is completed -- but in the meantime, you're dealing with some serious symptoms. Over the next few days, you're continually fed little cups of medicine to help you deal with the sickness. They come out in a tray that is filled with 30 or 40 such cups because the nurse is distributing the medicine to numerous patients.
After a week or two, you feel better. You dealt with some side effects from the medicine, but you're healthy again, so what's the big deal?