Final answer:
The best schedule for constant pain is around-the-clock medication, as it provides steady analgesia and pain control. Other options may not be as effective and may require higher dosages.
Step-by-step explanation:
The best schedule for providing steady analgesia and pain control for constant pain is around-the-clock medication. This means that the medication is given regularly throughout the day to maintain a consistent level of pain relief. Other options, such as taking medication as needed or using higher dosages, may not be as effective in controlling constant pain. A consistent schedule helps to achieve pain control without the need for higher dosages.