Taking more of a treatment often increases harms without increasing how much it helps.
It may seem to make sense that if a treatment is helpful, more of it may be even more helpful. However, increasing the dose or amount of a treatment often increases the harm it may cause, without increasing how much it helps. You can have “too much of a good thing”.
For example, vitamin D is essential for health, but too much of it can damage your bones, heart, and kidneys. Similarly, too much of most medicines can be harmful.
REMEMBER: More is not necessarily better.