Yeap
The costs are crazy really. I've also spent thousands with less results.
Unfortunately I can't help with info regarding CS good source - I'm also searching for one. What I know is shoal be taken short term and the purity the ppm and quantity is important when treating something.
I'm still searching the net cause conventional med gave me Antibiotics with not so much success. I'll let you know if I found something new. Long term rx Antibiotics are many times main cause of other problem.
Ifyou can try the ones I put on previous message garlic coconut oil turmeric and Ginger tea. Really made a difference for me