"The licorice drops that I purchased were Alcohol free so I suppose they should be okay."

Does it say DGL on the label? Next time make sure not to get DGL licorice. DGL stands for De-Glycyrrhizinated Licorice. The glycyrrhizin was removed. That substance provides many of the medicinal properties in licorice. It can raise blood pressure though, so those with high blood pressure or who want to use large doses of licorice sometime use the DGL licorice. It is meant for those who can't tolerate the regular licorice.

"I will buy some milk thistle for him today. So you recommend getting drops?"

I guess so, since it is so hard to make tea from milk thistle, and many websites claim that capsules of the crushed herb aren't absorbed very well.

"When you felt sick who cared for you if you don't mind me asking?"

Basically myself. It wasn't easy.

"Did you feel large improvements once the amalgams were replaced?
"

I went through periods of feeling much better then much worse. Soon after amalgams were replaced I felt better, but then a few weeks later I felt much worse as my body seemed to be dumping mercury that was deeply stored.