I have been a bit suspect of all this Colloidal Silver hyping... I'm also kind of concerned about the nano particle silver. We don't really know how nano anything will effect the body.
I tried it & it didn't seem to help me all that much in the past.
My situation with raw garlic is that I think I have some kind of allergy to it - which happens sometimes. I don't have allergic reactions to anything else i can think of. I'm not an allergic type of person. It's weird, one year I was eating raw garlic pretty often & I got mondo sinus allergies. It happens when I eat too much raw garlic now.
I don't know if it will happen from the freeze dried kind. Some people are very into freeze dried garlic. Especially in the Lyme Disease community.
Oil of oregano always seemed like strong stuff to me. Maybe too strong. I always preferred tea tree oil & eucalyptus.
How about lemons?
I'm going to reconsider echineacea! Somehow it didn't seem strong enough - but in light of some of your posts, I understand. Especially, about the herbal money making machine. Makes sense...
Interesting about the probiotics. There's alot of interest in pharma-food in regards to this. They are making Genetically-Modified probiotics to add to food. One is made from human breast milk & spliced with goat milk or something. They want to add it to baby food & formula! No joke... There are alot of designer probiotics out there. One company is selling one that costs $700 a month & it's supposed to repopulate your intestinal tract with "the right stuff". Some people who are very ill are saying it really helps, though. Hard to say... Thankfully, my intestines are OK. I do eat kefir & yogurt.