My family insisted that I look at superstition and told me to drink incense ashes and boiled water. They said it was Buddha water, and there was information in it. What should I do?

When you say superstition, you must be superstitious. There are two kinds of beliefs, namely belief and superstition. Faith is to really understand, but to believe, superstition is to blindly believe without understanding. The incense ashes and water you mentioned, and the incense ashes and water blessed by practitioners, do have information, not only information, but also infinite merits, which can cure all intractable diseases. If you don't believe this, you can refer to it