I think it is important to discuss taking something like silica with your doctor. Because silica is a mineral, I know there are advantages to this and that many people have had good results with it.
Even though this is often used for chronic conditions, I have also heard long time use of this supplement can be dangerous.
My friend was taking this supplement for years, and one day she was discussing this with her doctor. He said that in some cases, you can overdose on this and cause long term kidney damage.
This is just something to be aware of and to check it out with your doctor before taking something like this for a long time.
I know any time I go to the doctor now, they want to know all of the vitamins, herbs and supplements I am taking in addition to any prescription medications.